20211290

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{4273}}^1$

素因数の和:4334

約数の個数: 32

約数和(自身を含む): 40620096

約数和(自身を除く): 20408806

約数列:

[1, 2, 5, 10, 11, 22, 43, 55, 86, 110, 215, 430, 473, 946, 2365, 4273, 4730, 8546, 21365, 42730, 47003, 94006, 183739, 235015, 367478, 470030, 918695, 1837390, 2021129, 4042258, 10105645, 20211290]

約数ペア:

[(1, 20211290), (2, 10105645), (5, 4042258), (10, 2021129), (11, 1837390), (22, 918695), (43, 470030), (55, 367478), (86, 235015), (110, 183739), (215, 94006), (430, 47003), (473, 42730), (946, 21365), (2365, 8546), (4273, 4730)]