21588320

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{107}}^1$

素因数の和:232

約数の個数: 96

約数和(自身を含む): 56010528

約数和(自身を除く): 34422208

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 65, 80, 97, 104, 107, 130, 160, 194, 208, 214, 260, 388, 416, 428, 485, 520, 535, 776, 856, 970, 1040, 1070, 1261, 1391, 1552, 1712, 1940, 2080, 2140, 2522, 2782, 3104, 3424, 3880, 4280, 5044, 5564, 6305, 6955, 7760, 8560, 10088, 10379, 11128, 12610, 13910, 15520, 17120, 20176, 20758, 22256, 25220, 27820, 40352, 41516, 44512, 50440, 51895, 55640, 83032, 100880, 103790, 111280, 134927, 166064, 201760, 207580, 222560, 269854, 332128, 415160, 539708, 674635, 830320, 1079416, 1349270, 1660640, 2158832, 2698540, 4317664, 5397080, 10794160, 21588320]

約数ペア:

[(1, 21588320), (2, 10794160), (4, 5397080), (5, 4317664), (8, 2698540), (10, 2158832), (13, 1660640), (16, 1349270), (20, 1079416), (26, 830320), (32, 674635), (40, 539708), (52, 415160), (65, 332128), (80, 269854), (97, 222560), (104, 207580), (107, 201760), (130, 166064), (160, 134927), (194, 111280), (208, 103790), (214, 100880), (260, 83032), (388, 55640), (416, 51895), (428, 50440), (485, 44512), (520, 41516), (535, 40352), (776, 27820), (856, 25220), (970, 22256), (1040, 20758), (1070, 20176), (1261, 17120), (1391, 15520), (1552, 13910), (1712, 12610), (1940, 11128), (2080, 10379), (2140, 10088), (2522, 8560), (2782, 7760), (3104, 6955), (3424, 6305), (3880, 5564), (4280, 5044)]