215853885

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{197}}^1\times {\mathrm{1873}}^1$

素因数の和:2094

約数の個数: 48

約数和(自身を含む): 405188784

約数和(自身を除く): 189334899

約数列:

[1, 3, 5, 9, 13, 15, 39, 45, 65, 117, 195, 197, 585, 591, 985, 1773, 1873, 2561, 2955, 5619, 7683, 8865, 9365, 12805, 16857, 23049, 24349, 28095, 38415, 73047, 84285, 115245, 121745, 219141, 365235, 368981, 1095705, 1106943, 1844905, 3320829, 4796753, 5534715, 14390259, 16604145, 23983765, 43170777, 71951295, 215853885]

約数ペア:

[(1, 215853885), (3, 71951295), (5, 43170777), (9, 23983765), (13, 16604145), (15, 14390259), (39, 5534715), (45, 4796753), (65, 3320829), (117, 1844905), (195, 1106943), (197, 1095705), (585, 368981), (591, 365235), (985, 219141), (1773, 121745), (1873, 115245), (2561, 84285), (2955, 73047), (5619, 38415), (7683, 28095), (8865, 24349), (9365, 23049), (12805, 16857)]