21135822568

素因数分解:

$2^3\times 7^1\times {\mathrm{31}}^1\times {\mathrm{73}}^1\times {\mathrm{166781}}^1$

素因数の和:166898

約数の個数: 64

約数和(自身を含む): 47392773120

約数和(自身を除く): 26256950552

約数列:

[1, 2, 4, 7, 8, 14, 28, 31, 56, 62, 73, 124, 146, 217, 248, 292, 434, 511, 584, 868, 1022, 1736, 2044, 2263, 4088, 4526, 9052, 15841, 18104, 31682, 63364, 126728, 166781, 333562, 667124, 1167467, 1334248, 2334934, 4669868, 5170211, 9339736, 10340422, 12175013, 20680844, 24350026, 36191477, 41361688, 48700052, 72382954, 85225091, 97400104, 144765908, 170450182, 289531816, 340900364, 377425403, 681800728, 754850806, 1509701612, 2641977821, 3019403224, 5283955642, 10567911284, 21135822568]

約数ペア:

[(1, 21135822568), (2, 10567911284), (4, 5283955642), (7, 3019403224), (8, 2641977821), (14, 1509701612), (28, 754850806), (31, 681800728), (56, 377425403), (62, 340900364), (73, 289531816), (124, 170450182), (146, 144765908), (217, 97400104), (248, 85225091), (292, 72382954), (434, 48700052), (511, 41361688), (584, 36191477), (868, 24350026), (1022, 20680844), (1736, 12175013), (2044, 10340422), (2263, 9339736), (4088, 5170211), (4526, 4669868), (9052, 2334934), (15841, 1334248), (18104, 1167467), (31682, 667124), (63364, 333562), (126728, 166781)]