21066732

素因数分解:

$2^2\times 3^2\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{439}}^1$

素因数の和:523

約数の個数: 72

約数和(自身を含む): 56376320

約数和(自身を除く): 35309588

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 31, 36, 43, 62, 86, 93, 124, 129, 172, 186, 258, 279, 372, 387, 439, 516, 558, 774, 878, 1116, 1317, 1333, 1548, 1756, 2634, 2666, 3951, 3999, 5268, 5332, 7902, 7998, 11997, 13609, 15804, 15996, 18877, 23994, 27218, 37754, 40827, 47988, 54436, 56631, 75508, 81654, 113262, 122481, 163308, 169893, 226524, 244962, 339786, 489924, 585187, 679572, 1170374, 1755561, 2340748, 3511122, 5266683, 7022244, 10533366, 21066732]

約数ペア:

[(1, 21066732), (2, 10533366), (3, 7022244), (4, 5266683), (6, 3511122), (9, 2340748), (12, 1755561), (18, 1170374), (31, 679572), (36, 585187), (43, 489924), (62, 339786), (86, 244962), (93, 226524), (124, 169893), (129, 163308), (172, 122481), (186, 113262), (258, 81654), (279, 75508), (372, 56631), (387, 54436), (439, 47988), (516, 40827), (558, 37754), (774, 27218), (878, 23994), (1116, 18877), (1317, 15996), (1333, 15804), (1548, 13609), (1756, 11997), (2634, 7998), (2666, 7902), (3951, 5332), (3999, 5268)]