21310224

素因数分解:

$2^4\times 3^1\times {\mathrm{13}}^2\times {\mathrm{37}}^1\times {\mathrm{71}}^1$

素因数の和:145

約数の個数: 120

約数和(自身を含む): 62085312

約数和(自身を除く): 40775088

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 16, 24, 26, 37, 39, 48, 52, 71, 74, 78, 104, 111, 142, 148, 156, 169, 208, 213, 222, 284, 296, 312, 338, 426, 444, 481, 507, 568, 592, 624, 676, 852, 888, 923, 962, 1014, 1136, 1352, 1443, 1704, 1776, 1846, 1924, 2028, 2627, 2704, 2769, 2886, 3408, 3692, 3848, 4056, 5254, 5538, 5772, 6253, 7384, 7696, 7881, 8112, 10508, 11076, 11544, 11999, 12506, 14768, 15762, 18759, 21016, 22152, 23088, 23998, 25012, 31524, 34151, 35997, 37518, 42032, 44304, 47996, 50024, 63048, 68302, 71994, 75036, 95992, 100048, 102453, 126096, 136604, 143988, 150072, 191984, 204906, 273208, 287976, 300144, 409812, 443963, 546416, 575952, 819624, 887926, 1331889, 1639248, 1775852, 2663778, 3551704, 5327556, 7103408, 10655112, 21310224]

約数ペア:

[(1, 21310224), (2, 10655112), (3, 7103408), (4, 5327556), (6, 3551704), (8, 2663778), (12, 1775852), (13, 1639248), (16, 1331889), (24, 887926), (26, 819624), (37, 575952), (39, 546416), (48, 443963), (52, 409812), (71, 300144), (74, 287976), (78, 273208), (104, 204906), (111, 191984), (142, 150072), (148, 143988), (156, 136604), (169, 126096), (208, 102453), (213, 100048), (222, 95992), (284, 75036), (296, 71994), (312, 68302), (338, 63048), (426, 50024), (444, 47996), (481, 44304), (507, 42032), (568, 37518), (592, 35997), (624, 34151), (676, 31524), (852, 25012), (888, 23998), (923, 23088), (962, 22152), (1014, 21016), (1136, 18759), (1352, 15762), (1443, 14768), (1704, 12506), (1776, 11999), (1846, 11544), (1924, 11076), (2028, 10508), (2627, 8112), (2704, 7881), (2769, 7696), (2886, 7384), (3408, 6253), (3692, 5772), (3848, 5538), (4056, 5254)]