21191937775

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{46471}}^1$

素因数の和:46564

約数の個数: 48

約数和(自身を含む): 29561768640

約数和(自身を除く): 8369830865

約数列:

[1, 5, 17, 25, 29, 37, 85, 145, 185, 425, 493, 629, 725, 925, 1073, 2465, 3145, 5365, 12325, 15725, 18241, 26825, 46471, 91205, 232355, 456025, 790007, 1161775, 1347659, 1719427, 3950035, 6738295, 8597135, 19750175, 22910203, 29230259, 33691475, 42985675, 49863383, 114551015, 146151295, 249316915, 572755075, 730756475, 847677511, 1246584575, 4238387555, 21191937775]

約数ペア:

[(1, 21191937775), (5, 4238387555), (17, 1246584575), (25, 847677511), (29, 730756475), (37, 572755075), (85, 249316915), (145, 146151295), (185, 114551015), (425, 49863383), (493, 42985675), (629, 33691475), (725, 29230259), (925, 22910203), (1073, 19750175), (2465, 8597135), (3145, 6738295), (5365, 3950035), (12325, 1719427), (15725, 1347659), (18241, 1161775), (26825, 790007), (46471, 456025), (91205, 232355)]