21821151

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{101}}^1\times {\mathrm{6547}}^1$

素因数の和:6662

約数の個数: 16

約数和(自身を含む): 32059008

約数和(自身を除く): 10237857

約数列:

[1, 3, 11, 33, 101, 303, 1111, 3333, 6547, 19641, 72017, 216051, 661247, 1983741, 7273717, 21821151]

約数ペア:

[(1, 21821151), (3, 7273717), (11, 1983741), (33, 661247), (101, 216051), (303, 72017), (1111, 19641), (3333, 6547)]