21689220

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{113}}^1\times {\mathrm{457}}^1$

素因数の和:589

約数の個数: 96

約数和(自身を含む): 70172928

約数和(自身を除く): 48483708

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 113, 140, 210, 226, 339, 420, 452, 457, 565, 678, 791, 914, 1130, 1356, 1371, 1582, 1695, 1828, 2260, 2285, 2373, 2742, 3164, 3199, 3390, 3955, 4570, 4746, 5484, 6398, 6780, 6855, 7910, 9140, 9492, 9597, 11865, 12796, 13710, 15820, 15995, 19194, 23730, 27420, 31990, 38388, 47460, 47985, 51641, 63980, 95970, 103282, 154923, 191940, 206564, 258205, 309846, 361487, 516410, 619692, 722974, 774615, 1032820, 1084461, 1445948, 1549230, 1807435, 2168922, 3098460, 3614870, 4337844, 5422305, 7229740, 10844610, 21689220]

約数ペア:

[(1, 21689220), (2, 10844610), (3, 7229740), (4, 5422305), (5, 4337844), (6, 3614870), (7, 3098460), (10, 2168922), (12, 1807435), (14, 1549230), (15, 1445948), (20, 1084461), (21, 1032820), (28, 774615), (30, 722974), (35, 619692), (42, 516410), (60, 361487), (70, 309846), (84, 258205), (105, 206564), (113, 191940), (140, 154923), (210, 103282), (226, 95970), (339, 63980), (420, 51641), (452, 47985), (457, 47460), (565, 38388), (678, 31990), (791, 27420), (914, 23730), (1130, 19194), (1356, 15995), (1371, 15820), (1582, 13710), (1695, 12796), (1828, 11865), (2260, 9597), (2285, 9492), (2373, 9140), (2742, 7910), (3164, 6855), (3199, 6780), (3390, 6398), (3955, 5484), (4570, 4746)]