2100077775

素因数分解:

$3^2\times 5^2\times {\mathrm{29}}^1\times {\mathrm{321851}}^1$

素因数の和:321896

約数の個数: 36

約数和(自身を含む): 3891190680

約数和(自身を除く): 1791112905

約数列:

[1, 3, 5, 9, 15, 25, 29, 45, 75, 87, 145, 225, 261, 435, 725, 1305, 2175, 6525, 321851, 965553, 1609255, 2896659, 4827765, 8046275, 9333679, 14483295, 24138825, 28001037, 46668395, 72416475, 84003111, 140005185, 233341975, 420015555, 700025925, 2100077775]

約数ペア:

[(1, 2100077775), (3, 700025925), (5, 420015555), (9, 233341975), (15, 140005185), (25, 84003111), (29, 72416475), (45, 46668395), (75, 28001037), (87, 24138825), (145, 14483295), (225, 9333679), (261, 8046275), (435, 4827765), (725, 2896659), (1305, 1609255), (2175, 965553), (6525, 321851)]