21274471

素因数分解:

${\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{89}}^1\times {\mathrm{547}}^1$

素因数の和:678

約数の個数: 16

約数和(自身を含む): 23673600

約数和(自身を除く): 2399129

約数列:

[1, 19, 23, 89, 437, 547, 1691, 2047, 10393, 12581, 38893, 48683, 239039, 924977, 1119709, 21274471]

約数ペア:

[(1, 21274471), (19, 1119709), (23, 924977), (89, 239039), (437, 48683), (547, 38893), (1691, 12581), (2047, 10393)]