19995204

素因数分解:

$2^2\times 3^1\times {\mathrm{53}}^1\times {\mathrm{149}}^1\times {\mathrm{211}}^1$

素因数の和:420

約数の個数: 48

約数和(自身を含む): 48081600

約数和(自身を除く): 28086396

約数列:

[1, 2, 3, 4, 6, 12, 53, 106, 149, 159, 211, 212, 298, 318, 422, 447, 596, 633, 636, 844, 894, 1266, 1788, 2532, 7897, 11183, 15794, 22366, 23691, 31439, 31588, 33549, 44732, 47382, 62878, 67098, 94317, 94764, 125756, 134196, 188634, 377268, 1666267, 3332534, 4998801, 6665068, 9997602, 19995204]

約数ペア:

[(1, 19995204), (2, 9997602), (3, 6665068), (4, 4998801), (6, 3332534), (12, 1666267), (53, 377268), (106, 188634), (149, 134196), (159, 125756), (211, 94764), (212, 94317), (298, 67098), (318, 62878), (422, 47382), (447, 44732), (596, 33549), (633, 31588), (636, 31439), (844, 23691), (894, 22366), (1266, 15794), (1788, 11183), (2532, 7897)]