21013304

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{2083}}^1$

素因数の和:2199

約数の個数: 32

約数和(自身を含む): 42888720

約数和(自身を除く): 21875416

約数列:

[1, 2, 4, 8, 13, 26, 52, 97, 104, 194, 388, 776, 1261, 2083, 2522, 4166, 5044, 8332, 10088, 16664, 27079, 54158, 108316, 202051, 216632, 404102, 808204, 1616408, 2626663, 5253326, 10506652, 21013304]

約数ペア:

[(1, 21013304), (2, 10506652), (4, 5253326), (8, 2626663), (13, 1616408), (26, 808204), (52, 404102), (97, 216632), (104, 202051), (194, 108316), (388, 54158), (776, 27079), (1261, 16664), (2083, 10088), (2522, 8332), (4166, 5044)]