19976175

素因数分解:

$3^2\times 5^2\times {\mathrm{47}}^1\times {\mathrm{1889}}^1$

素因数の和:1952

約数の個数: 36

約数和(自身を含む): 36560160

約数和(自身を除く): 16583985

約数列:

[1, 3, 5, 9, 15, 25, 45, 47, 75, 141, 225, 235, 423, 705, 1175, 1889, 2115, 3525, 5667, 9445, 10575, 17001, 28335, 47225, 85005, 88783, 141675, 266349, 425025, 443915, 799047, 1331745, 2219575, 3995235, 6658725, 19976175]

約数ペア:

[(1, 19976175), (3, 6658725), (5, 3995235), (9, 2219575), (15, 1331745), (25, 799047), (45, 443915), (47, 425025), (75, 266349), (141, 141675), (225, 88783), (235, 85005), (423, 47225), (705, 28335), (1175, 17001), (1889, 10575), (2115, 9445), (3525, 5667)]