21602890

素因数分解:

$2^1\times 5^1\times {\mathrm{73}}^1\times {\mathrm{101}}^1\times {\mathrm{293}}^1$

素因数の和:474

約数の個数: 32

約数和(自身を含む): 39944016

約数和(自身を除く): 18341126

約数列:

[1, 2, 5, 10, 73, 101, 146, 202, 293, 365, 505, 586, 730, 1010, 1465, 2930, 7373, 14746, 21389, 29593, 36865, 42778, 59186, 73730, 106945, 147965, 213890, 295930, 2160289, 4320578, 10801445, 21602890]

約数ペア:

[(1, 21602890), (2, 10801445), (5, 4320578), (10, 2160289), (73, 295930), (101, 213890), (146, 147965), (202, 106945), (293, 73730), (365, 59186), (505, 42778), (586, 36865), (730, 29593), (1010, 21389), (1465, 14746), (2930, 7373)]