21204748

素因数分解:

$2^2\times {\mathrm{73}}^1\times {\mathrm{101}}^1\times {\mathrm{719}}^1$

素因数の和:897

約数の個数: 24

約数和(自身を含む): 38041920

約数和(自身を除く): 16837172

約数列:

[1, 2, 4, 73, 101, 146, 202, 292, 404, 719, 1438, 2876, 7373, 14746, 29492, 52487, 72619, 104974, 145238, 209948, 290476, 5301187, 10602374, 21204748]

約数ペア:

[(1, 21204748), (2, 10602374), (4, 5301187), (73, 290476), (101, 209948), (146, 145238), (202, 104974), (292, 72619), (404, 52487), (719, 29492), (1438, 14746), (2876, 7373)]