21270621

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{59}}^1\times {\mathrm{7069}}^1$

素因数の和:7148

約数の個数: 16

約数和(自身を含む): 30542400

約数和(自身を除く): 9271779

約数列:

[1, 3, 17, 51, 59, 177, 1003, 3009, 7069, 21207, 120173, 360519, 417071, 1251213, 7090207, 21270621]

約数ペア:

[(1, 21270621), (3, 7090207), (17, 1251213), (51, 417071), (59, 360519), (177, 120173), (1003, 21207), (3009, 7069)]