21988148

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{2083}}^1$

素因数の和:2136

約数の個数: 48

約数和(自身を含む): 49015680

約数和(自身を除く): 27027532

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 29, 52, 58, 91, 116, 182, 203, 364, 377, 406, 754, 812, 1508, 2083, 2639, 4166, 5278, 8332, 10556, 14581, 27079, 29162, 54158, 58324, 60407, 108316, 120814, 189553, 241628, 379106, 422849, 758212, 785291, 845698, 1570582, 1691396, 3141164, 5497037, 10994074, 21988148]

約数ペア:

[(1, 21988148), (2, 10994074), (4, 5497037), (7, 3141164), (13, 1691396), (14, 1570582), (26, 845698), (28, 785291), (29, 758212), (52, 422849), (58, 379106), (91, 241628), (116, 189553), (182, 120814), (203, 108316), (364, 60407), (377, 58324), (406, 54158), (754, 29162), (812, 27079), (1508, 14581), (2083, 10556), (2639, 8332), (4166, 5278)]