21065580

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{3163}}^1$

素因数の和:3215

約数の個数: 72

約数和(自身を含む): 65646672

約数和(自身を除く): 44581092

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 37, 45, 60, 74, 90, 111, 148, 180, 185, 222, 333, 370, 444, 555, 666, 740, 1110, 1332, 1665, 2220, 3163, 3330, 6326, 6660, 9489, 12652, 15815, 18978, 28467, 31630, 37956, 47445, 56934, 63260, 94890, 113868, 117031, 142335, 189780, 234062, 284670, 351093, 468124, 569340, 585155, 702186, 1053279, 1170310, 1404372, 1755465, 2106558, 2340620, 3510930, 4213116, 5266395, 7021860, 10532790, 21065580]

約数ペア:

[(1, 21065580), (2, 10532790), (3, 7021860), (4, 5266395), (5, 4213116), (6, 3510930), (9, 2340620), (10, 2106558), (12, 1755465), (15, 1404372), (18, 1170310), (20, 1053279), (30, 702186), (36, 585155), (37, 569340), (45, 468124), (60, 351093), (74, 284670), (90, 234062), (111, 189780), (148, 142335), (180, 117031), (185, 113868), (222, 94890), (333, 63260), (370, 56934), (444, 47445), (555, 37956), (666, 31630), (740, 28467), (1110, 18978), (1332, 15815), (1665, 12652), (2220, 9489), (3163, 6660), (3330, 6326)]