21591388

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{2579}}^1$

素因数の和:2626

約数の個数: 48

約数和(自身を含む): 48545280

約数和(自身を除く): 26953892

約数列:

[1, 2, 4, 7, 13, 14, 23, 26, 28, 46, 52, 91, 92, 161, 182, 299, 322, 364, 598, 644, 1196, 2093, 2579, 4186, 5158, 8372, 10316, 18053, 33527, 36106, 59317, 67054, 72212, 118634, 134108, 234689, 237268, 415219, 469378, 771121, 830438, 938756, 1542242, 1660876, 3084484, 5397847, 10795694, 21591388]

約数ペア:

[(1, 21591388), (2, 10795694), (4, 5397847), (7, 3084484), (13, 1660876), (14, 1542242), (23, 938756), (26, 830438), (28, 771121), (46, 469378), (52, 415219), (91, 237268), (92, 234689), (161, 134108), (182, 118634), (299, 72212), (322, 67054), (364, 59317), (598, 36106), (644, 33527), (1196, 18053), (2093, 10316), (2579, 8372), (4186, 5158)]