21494970

素因数分解:

$2^1\times 3^4\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{223}}^1$

素因数の和:266

約数の個数: 160

約数和(自身を含む): 70253568

約数和(自身を除く): 48758598

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 17, 18, 21, 27, 30, 34, 35, 42, 45, 51, 54, 63, 70, 81, 85, 90, 102, 105, 119, 126, 135, 153, 162, 170, 189, 210, 223, 238, 255, 270, 306, 315, 357, 378, 405, 446, 459, 510, 567, 595, 630, 669, 714, 765, 810, 918, 945, 1071, 1115, 1134, 1190, 1338, 1377, 1530, 1561, 1785, 1890, 2007, 2142, 2230, 2295, 2754, 2835, 3122, 3213, 3345, 3570, 3791, 4014, 4590, 4683, 5355, 5670, 6021, 6426, 6690, 6885, 7582, 7805, 9366, 9639, 10035, 10710, 11373, 12042, 13770, 14049, 15610, 16065, 18063, 18955, 19278, 20070, 22746, 23415, 26537, 28098, 30105, 32130, 34119, 36126, 37910, 42147, 46830, 48195, 53074, 56865, 60210, 68238, 70245, 79611, 84294, 90315, 96390, 102357, 113730, 126441, 132685, 140490, 159222, 170595, 180630, 204714, 210735, 238833, 252882, 265370, 307071, 341190, 398055, 421470, 477666, 511785, 614142, 632205, 716499, 796110, 1023570, 1194165, 1264410, 1432998, 1535355, 2149497, 2388330, 3070710, 3582495, 4298994, 7164990, 10747485, 21494970]

約数ペア:

[(1, 21494970), (2, 10747485), (3, 7164990), (5, 4298994), (6, 3582495), (7, 3070710), (9, 2388330), (10, 2149497), (14, 1535355), (15, 1432998), (17, 1264410), (18, 1194165), (21, 1023570), (27, 796110), (30, 716499), (34, 632205), (35, 614142), (42, 511785), (45, 477666), (51, 421470), (54, 398055), (63, 341190), (70, 307071), (81, 265370), (85, 252882), (90, 238833), (102, 210735), (105, 204714), (119, 180630), (126, 170595), (135, 159222), (153, 140490), (162, 132685), (170, 126441), (189, 113730), (210, 102357), (223, 96390), (238, 90315), (255, 84294), (270, 79611), (306, 70245), (315, 68238), (357, 60210), (378, 56865), (405, 53074), (446, 48195), (459, 46830), (510, 42147), (567, 37910), (595, 36126), (630, 34119), (669, 32130), (714, 30105), (765, 28098), (810, 26537), (918, 23415), (945, 22746), (1071, 20070), (1115, 19278), (1134, 18955), (1190, 18063), (1338, 16065), (1377, 15610), (1530, 14049), (1561, 13770), (1785, 12042), (1890, 11373), (2007, 10710), (2142, 10035), (2230, 9639), (2295, 9366), (2754, 7805), (2835, 7582), (3122, 6885), (3213, 6690), (3345, 6426), (3570, 6021), (3791, 5670), (4014, 5355), (4590, 4683)]