20783212

素因数分解:

$2^2\times {\mathrm{47}}^1\times {\mathrm{227}}^1\times {\mathrm{487}}^1$

素因数の和:765

約数の個数: 24

約数和(自身を含む): 37384704

約数和(自身を除く): 16601492

約数列:

[1, 2, 4, 47, 94, 188, 227, 454, 487, 908, 974, 1948, 10669, 21338, 22889, 42676, 45778, 91556, 110549, 221098, 442196, 5195803, 10391606, 20783212]

約数ペア:

[(1, 20783212), (2, 10391606), (4, 5195803), (47, 442196), (94, 221098), (188, 110549), (227, 91556), (454, 45778), (487, 42676), (908, 22889), (974, 21338), (1948, 10669)]