21384090

素因数分解:

$2^1\times 3^2\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{373}}^1$

素因数の和:413

約数の個数: 144

約数和(自身を含む): 69837768

約数和(自身を除く): 48453678

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 13, 14, 15, 18, 21, 26, 30, 35, 39, 42, 45, 49, 63, 65, 70, 78, 90, 91, 98, 105, 117, 126, 130, 147, 182, 195, 210, 234, 245, 273, 294, 315, 373, 390, 441, 455, 490, 546, 585, 630, 637, 735, 746, 819, 882, 910, 1119, 1170, 1274, 1365, 1470, 1638, 1865, 1911, 2205, 2238, 2611, 2730, 3185, 3357, 3730, 3822, 4095, 4410, 4849, 5222, 5595, 5733, 6370, 6714, 7833, 8190, 9555, 9698, 11190, 11466, 13055, 14547, 15666, 16785, 18277, 19110, 23499, 24245, 26110, 28665, 29094, 33570, 33943, 36554, 39165, 43641, 46998, 48490, 54831, 57330, 67886, 72735, 78330, 87282, 91385, 101829, 109662, 117495, 145470, 164493, 169715, 182770, 203658, 218205, 234990, 237601, 274155, 305487, 328986, 339430, 436410, 475202, 509145, 548310, 610974, 712803, 822465, 1018290, 1188005, 1425606, 1527435, 1644930, 2138409, 2376010, 3054870, 3564015, 4276818, 7128030, 10692045, 21384090]

約数ペア:

[(1, 21384090), (2, 10692045), (3, 7128030), (5, 4276818), (6, 3564015), (7, 3054870), (9, 2376010), (10, 2138409), (13, 1644930), (14, 1527435), (15, 1425606), (18, 1188005), (21, 1018290), (26, 822465), (30, 712803), (35, 610974), (39, 548310), (42, 509145), (45, 475202), (49, 436410), (63, 339430), (65, 328986), (70, 305487), (78, 274155), (90, 237601), (91, 234990), (98, 218205), (105, 203658), (117, 182770), (126, 169715), (130, 164493), (147, 145470), (182, 117495), (195, 109662), (210, 101829), (234, 91385), (245, 87282), (273, 78330), (294, 72735), (315, 67886), (373, 57330), (390, 54831), (441, 48490), (455, 46998), (490, 43641), (546, 39165), (585, 36554), (630, 33943), (637, 33570), (735, 29094), (746, 28665), (819, 26110), (882, 24245), (910, 23499), (1119, 19110), (1170, 18277), (1274, 16785), (1365, 15666), (1470, 14547), (1638, 13055), (1865, 11466), (1911, 11190), (2205, 9698), (2238, 9555), (2611, 8190), (2730, 7833), (3185, 6714), (3357, 6370), (3730, 5733), (3822, 5595), (4095, 5222), (4410, 4849)]