21321201

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{101}}^1\times {\mathrm{6397}}^1$

素因数の和:6512

約数の個数: 16

約数和(自身を含む): 31324608

約数和(自身を除く): 10003407

約数列:

[1, 3, 11, 33, 101, 303, 1111, 3333, 6397, 19191, 70367, 211101, 646097, 1938291, 7107067, 21321201]

約数ペア:

[(1, 21321201), (3, 7107067), (11, 1938291), (33, 646097), (101, 211101), (303, 70367), (1111, 19191), (3333, 6397)]