21005974

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{67}}^1\times {\mathrm{14251}}^1$

素因数の和:14331

約数の個数: 16

約数和(自身を含む): 34888896

約数和(自身を除く): 13882922

約数列:

[1, 2, 11, 22, 67, 134, 737, 1474, 14251, 28502, 156761, 313522, 954817, 1909634, 10502987, 21005974]

約数ペア:

[(1, 21005974), (2, 10502987), (11, 1909634), (22, 954817), (67, 313522), (134, 156761), (737, 28502), (1474, 14251)]