21615672995

素因数分解:

$5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{67}}^1\times {\mathrm{137}}^1\times {\mathrm{1103}}^1$

素因数の和:1380

約数の個数: 64

約数和(自身を含む): 30831169536

約数和(自身を除く): 9215496541

約数列:

[1, 5, 7, 35, 61, 67, 137, 305, 335, 427, 469, 685, 959, 1103, 2135, 2345, 4087, 4795, 5515, 7721, 8357, 9179, 20435, 28609, 38605, 41785, 45895, 58499, 64253, 67283, 73901, 143045, 151111, 292495, 321265, 336415, 369505, 470981, 517307, 559919, 755555, 1057777, 2354905, 2586535, 2799595, 3919433, 4507961, 5288885, 9217771, 10124437, 19597165, 22539805, 31555727, 46088855, 50622185, 64524397, 70871059, 157778635, 322621985, 354355295, 617590657, 3087953285, 4323134599, 21615672995]

約数ペア:

[(1, 21615672995), (5, 4323134599), (7, 3087953285), (35, 617590657), (61, 354355295), (67, 322621985), (137, 157778635), (305, 70871059), (335, 64524397), (427, 50622185), (469, 46088855), (685, 31555727), (959, 22539805), (1103, 19597165), (2135, 10124437), (2345, 9217771), (4087, 5288885), (4795, 4507961), (5515, 3919433), (7721, 2799595), (8357, 2586535), (9179, 2354905), (20435, 1057777), (28609, 755555), (38605, 559919), (41785, 517307), (45895, 470981), (58499, 369505), (64253, 336415), (67283, 321265), (73901, 292495), (143045, 151111)]