21326175

素因数分解:

$3^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{317}}^1$

素因数の和:369

約数の個数: 72

約数和(自身を含む): 43059744

約数和(自身を除く): 21733569

約数列:

[1, 3, 5, 9, 13, 15, 23, 25, 39, 45, 65, 69, 75, 115, 117, 195, 207, 225, 299, 317, 325, 345, 575, 585, 897, 951, 975, 1035, 1495, 1585, 1725, 2691, 2853, 2925, 4121, 4485, 4755, 5175, 7291, 7475, 7925, 12363, 13455, 14265, 20605, 21873, 22425, 23775, 36455, 37089, 61815, 65619, 67275, 71325, 94783, 103025, 109365, 182275, 185445, 284349, 309075, 328095, 473915, 546825, 853047, 927225, 1421745, 1640475, 2369575, 4265235, 7108725, 21326175]

約数ペア:

[(1, 21326175), (3, 7108725), (5, 4265235), (9, 2369575), (13, 1640475), (15, 1421745), (23, 927225), (25, 853047), (39, 546825), (45, 473915), (65, 328095), (69, 309075), (75, 284349), (115, 185445), (117, 182275), (195, 109365), (207, 103025), (225, 94783), (299, 71325), (317, 67275), (325, 65619), (345, 61815), (575, 37089), (585, 36455), (897, 23775), (951, 22425), (975, 21873), (1035, 20605), (1495, 14265), (1585, 13455), (1725, 12363), (2691, 7925), (2853, 7475), (2925, 7291), (4121, 5175), (4485, 4755)]