21034740

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{263}}^1$

素因数の和:349

約数の個数: 96

約数和(自身を含む): 62447616

約数和(自身を除く): 41412876

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 31, 43, 60, 62, 86, 93, 124, 129, 155, 172, 186, 215, 258, 263, 310, 372, 430, 465, 516, 526, 620, 645, 789, 860, 930, 1052, 1290, 1315, 1333, 1578, 1860, 2580, 2630, 2666, 3156, 3945, 3999, 5260, 5332, 6665, 7890, 7998, 8153, 11309, 13330, 15780, 15996, 16306, 19995, 22618, 24459, 26660, 32612, 33927, 39990, 40765, 45236, 48918, 56545, 67854, 79980, 81530, 97836, 113090, 122295, 135708, 163060, 169635, 226180, 244590, 339270, 350579, 489180, 678540, 701158, 1051737, 1402316, 1752895, 2103474, 3505790, 4206948, 5258685, 7011580, 10517370, 21034740]

約数ペア:

[(1, 21034740), (2, 10517370), (3, 7011580), (4, 5258685), (5, 4206948), (6, 3505790), (10, 2103474), (12, 1752895), (15, 1402316), (20, 1051737), (30, 701158), (31, 678540), (43, 489180), (60, 350579), (62, 339270), (86, 244590), (93, 226180), (124, 169635), (129, 163060), (155, 135708), (172, 122295), (186, 113090), (215, 97836), (258, 81530), (263, 79980), (310, 67854), (372, 56545), (430, 48918), (465, 45236), (516, 40765), (526, 39990), (620, 33927), (645, 32612), (789, 26660), (860, 24459), (930, 22618), (1052, 19995), (1290, 16306), (1315, 15996), (1333, 15780), (1578, 13330), (1860, 11309), (2580, 8153), (2630, 7998), (2666, 7890), (3156, 6665), (3945, 5332), (3999, 5260)]