21318110

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{4507}}^1$

素因数の和:4568

約数の個数: 32

約数和(自身を含む): 42844032

約数和(自身を除く): 21525922

約数列:

[1, 2, 5, 10, 11, 22, 43, 55, 86, 110, 215, 430, 473, 946, 2365, 4507, 4730, 9014, 22535, 45070, 49577, 99154, 193801, 247885, 387602, 495770, 969005, 1938010, 2131811, 4263622, 10659055, 21318110]

約数ペア:

[(1, 21318110), (2, 10659055), (5, 4263622), (10, 2131811), (11, 1938010), (22, 969005), (43, 495770), (55, 387602), (86, 247885), (110, 193801), (215, 99154), (430, 49577), (473, 45070), (946, 22535), (2365, 9014), (4507, 4730)]