21260190

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{3491}}^1$

素因数の和:3537

約数の個数: 64

約数和(自身を含む): 60341760

約数和(自身を除く): 39081570

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 29, 30, 35, 42, 58, 70, 87, 105, 145, 174, 203, 210, 290, 406, 435, 609, 870, 1015, 1218, 2030, 3045, 3491, 6090, 6982, 10473, 17455, 20946, 24437, 34910, 48874, 52365, 73311, 101239, 104730, 122185, 146622, 202478, 244370, 303717, 366555, 506195, 607434, 708673, 733110, 1012390, 1417346, 1518585, 2126019, 3037170, 3543365, 4252038, 7086730, 10630095, 21260190]

約数ペア:

[(1, 21260190), (2, 10630095), (3, 7086730), (5, 4252038), (6, 3543365), (7, 3037170), (10, 2126019), (14, 1518585), (15, 1417346), (21, 1012390), (29, 733110), (30, 708673), (35, 607434), (42, 506195), (58, 366555), (70, 303717), (87, 244370), (105, 202478), (145, 146622), (174, 122185), (203, 104730), (210, 101239), (290, 73311), (406, 52365), (435, 48874), (609, 34910), (870, 24437), (1015, 20946), (1218, 17455), (2030, 10473), (3045, 6982), (3491, 6090)]