21874530

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{547}}^1$

素因数の和:631

約数の個数: 64

約数和(自身を含む): 55554048

約数和(自身を除く): 33679518

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 31, 43, 62, 86, 93, 129, 155, 186, 215, 258, 310, 430, 465, 547, 645, 930, 1094, 1290, 1333, 1641, 2666, 2735, 3282, 3999, 5470, 6665, 7998, 8205, 13330, 16410, 16957, 19995, 23521, 33914, 39990, 47042, 50871, 70563, 84785, 101742, 117605, 141126, 169570, 235210, 254355, 352815, 508710, 705630, 729151, 1458302, 2187453, 3645755, 4374906, 7291510, 10937265, 21874530]

約数ペア:

[(1, 21874530), (2, 10937265), (3, 7291510), (5, 4374906), (6, 3645755), (10, 2187453), (15, 1458302), (30, 729151), (31, 705630), (43, 508710), (62, 352815), (86, 254355), (93, 235210), (129, 169570), (155, 141126), (186, 117605), (215, 101742), (258, 84785), (310, 70563), (430, 50871), (465, 47042), (547, 39990), (645, 33914), (930, 23521), (1094, 19995), (1290, 16957), (1333, 16410), (1641, 13330), (2666, 8205), (2735, 7998), (3282, 6665), (3999, 5470)]