18667332

素因数分解:

$2^2\times 3^2\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{389}}^1$

素因数の和:473

約数の個数: 72

約数和(自身を含む): 49969920

約数和(自身を除く): 31302588

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, 389, 516, 558, 774, 778, 1116, 1167, 1333, 1548, 1556, 2334, 2666, 3501, 3999, 4668, 5332, 7002, 7998, 11997, 12059, 14004, 15996, 16727, 23994, 24118, 33454, 36177, 47988, 48236, 50181, 66908, 72354, 100362, 108531, 144708, 150543, 200724, 217062, 301086, 434124, 518537, 602172, 1037074, 1555611, 2074148, 3111222, 4666833, 6222444, 9333666, 18667332]

約数ペア:

[(1, 18667332), (2, 9333666), (3, 6222444), (4, 4666833), (6, 3111222), (9, 2074148), (12, 1555611), (18, 1037074), (31, 602172), (36, 518537), (43, 434124), (62, 301086), (86, 217062), (93, 200724), (124, 150543), (129, 144708), (172, 108531), (186, 100362), (258, 72354), (279, 66908), (372, 50181), (387, 48236), (389, 47988), (516, 36177), (558, 33454), (774, 24118), (778, 23994), (1116, 16727), (1167, 15996), (1333, 14004), (1548, 12059), (1556, 11997), (2334, 7998), (2666, 7002), (3501, 5332), (3999, 4668)]