19810098201628

素因数分解:

$2^2\times 7^1\times {\mathrm{89}}^1\times {\mathrm{887}}^1\times {\mathrm{8962207}}^1$

素因数の和:8963194

約数の個数: 48

約数和(自身を含む): 40110541148160

約数和(自身を除く): 20300442946532

約数列:

[1, 2, 4, 7, 14, 28, 89, 178, 356, 623, 887, 1246, 1774, 2492, 3548, 6209, 12418, 24836, 78943, 157886, 315772, 552601, 1105202, 2210404, 8962207, 17924414, 35848828, 62735449, 125470898, 250941796, 797636423, 1595272846, 3190545692, 5583454961, 7949477609, 11166909922, 15898955218, 22333819844, 31797910436, 55646343263, 111292686526, 222585373052, 707503507201, 1415007014402, 2830014028804, 4952524550407, 9905049100814, 19810098201628]

約数ペア:

[(1, 19810098201628), (2, 9905049100814), (4, 4952524550407), (7, 2830014028804), (14, 1415007014402), (28, 707503507201), (89, 222585373052), (178, 111292686526), (356, 55646343263), (623, 31797910436), (887, 22333819844), (1246, 15898955218), (1774, 11166909922), (2492, 7949477609), (3548, 5583454961), (6209, 3190545692), (12418, 1595272846), (24836, 797636423), (78943, 250941796), (157886, 125470898), (315772, 62735449), (552601, 35848828), (1105202, 17924414), (2210404, 8962207)]