21449209535

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{19319}}^1$

素因数の和:19416

約数の個数: 64

約数和(自身を含む): 31159296000

約数和(自身を除く): 9710086465

約数列:

[1, 5, 13, 19, 29, 31, 65, 95, 145, 155, 247, 377, 403, 551, 589, 899, 1235, 1885, 2015, 2755, 2945, 4495, 7163, 7657, 11687, 17081, 19319, 35815, 38285, 58435, 85405, 96595, 222053, 251147, 367061, 560251, 598889, 1110265, 1255735, 1835305, 2801255, 2994445, 4771793, 7283263, 7785557, 10644769, 11378891, 17367781, 23858965, 36416315, 38927785, 53223845, 56894455, 86838905, 138381997, 147925583, 225781153, 329987839, 691909985, 739627915, 1128905765, 1649939195, 4289841907, 21449209535]

約数ペア:

[(1, 21449209535), (5, 4289841907), (13, 1649939195), (19, 1128905765), (29, 739627915), (31, 691909985), (65, 329987839), (95, 225781153), (145, 147925583), (155, 138381997), (247, 86838905), (377, 56894455), (403, 53223845), (551, 38927785), (589, 36416315), (899, 23858965), (1235, 17367781), (1885, 11378891), (2015, 10644769), (2755, 7785557), (2945, 7283263), (4495, 4771793), (7163, 2994445), (7657, 2801255), (11687, 1835305), (17081, 1255735), (19319, 1110265), (35815, 598889), (38285, 560251), (58435, 367061), (85405, 251147), (96595, 222053)]