21397492

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{419}}^1\times {\mathrm{751}}^1$

素因数の和:1191

約数の個数: 24

約数和(自身を含む): 39795840

約数和(自身を除く): 18398348

約数列:

[1, 2, 4, 17, 34, 68, 419, 751, 838, 1502, 1676, 3004, 7123, 12767, 14246, 25534, 28492, 51068, 314669, 629338, 1258676, 5349373, 10698746, 21397492]

約数ペア:

[(1, 21397492), (2, 10698746), (4, 5349373), (17, 1258676), (34, 629338), (68, 314669), (419, 51068), (751, 28492), (838, 25534), (1502, 14246), (1676, 12767), (3004, 7123)]