217400685

素因数分解:

$3^1\times 5^1\times {\mathrm{149}}^1\times {\mathrm{211}}^1\times {\mathrm{461}}^1$

素因数の和:829

約数の個数: 32

約数和(自身を含む): 352598400

約数和(自身を除く): 135197715

約数列:

[1, 3, 5, 15, 149, 211, 447, 461, 633, 745, 1055, 1383, 2235, 2305, 3165, 6915, 31439, 68689, 94317, 97271, 157195, 206067, 291813, 343445, 471585, 486355, 1030335, 1459065, 14493379, 43480137, 72466895, 217400685]

約数ペア:

[(1, 217400685), (3, 72466895), (5, 43480137), (15, 14493379), (149, 1459065), (211, 1030335), (447, 486355), (461, 471585), (633, 343445), (745, 291813), (1055, 206067), (1383, 157195), (2235, 97271), (2305, 94317), (3165, 68689), (6915, 31439)]