21038248

素因数分解:

$2^3\times 7^3\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1$

素因数の和:96

約数の個数: 128

約数和(自身を含む): 54432000

約数和(自身を除く): 33393752

約数列:

[1, 2, 4, 7, 8, 11, 14, 17, 22, 28, 34, 41, 44, 49, 56, 68, 77, 82, 88, 98, 119, 136, 154, 164, 187, 196, 238, 287, 308, 328, 343, 374, 392, 451, 476, 539, 574, 616, 686, 697, 748, 833, 902, 952, 1078, 1148, 1309, 1372, 1394, 1496, 1666, 1804, 2009, 2156, 2296, 2618, 2744, 2788, 3157, 3332, 3608, 3773, 4018, 4312, 4879, 5236, 5576, 5831, 6314, 6664, 7546, 7667, 8036, 9163, 9758, 10472, 11662, 12628, 14063, 15092, 15334, 16072, 18326, 19516, 22099, 23324, 25256, 28126, 30184, 30668, 34153, 36652, 39032, 44198, 46648, 53669, 56252, 61336, 64141, 68306, 73304, 88396, 107338, 112504, 128282, 136612, 154693, 176792, 214676, 239071, 256564, 273224, 309386, 375683, 429352, 478142, 513128, 618772, 751366, 956284, 1237544, 1502732, 1912568, 2629781, 3005464, 5259562, 10519124, 21038248]

約数ペア:

[(1, 21038248), (2, 10519124), (4, 5259562), (7, 3005464), (8, 2629781), (11, 1912568), (14, 1502732), (17, 1237544), (22, 956284), (28, 751366), (34, 618772), (41, 513128), (44, 478142), (49, 429352), (56, 375683), (68, 309386), (77, 273224), (82, 256564), (88, 239071), (98, 214676), (119, 176792), (136, 154693), (154, 136612), (164, 128282), (187, 112504), (196, 107338), (238, 88396), (287, 73304), (308, 68306), (328, 64141), (343, 61336), (374, 56252), (392, 53669), (451, 46648), (476, 44198), (539, 39032), (574, 36652), (616, 34153), (686, 30668), (697, 30184), (748, 28126), (833, 25256), (902, 23324), (952, 22099), (1078, 19516), (1148, 18326), (1309, 16072), (1372, 15334), (1394, 15092), (1496, 14063), (1666, 12628), (1804, 11662), (2009, 10472), (2156, 9758), (2296, 9163), (2618, 8036), (2744, 7667), (2788, 7546), (3157, 6664), (3332, 6314), (3608, 5831), (3773, 5576), (4018, 5236), (4312, 4879)]