21263912

素因数分解:

$2^3\times {\mathrm{41}}^1\times {\mathrm{241}}^1\times {\mathrm{269}}^1$

素因数の和:557

約数の個数: 32

約数和(自身を含む): 41164200

約数和(自身を除く): 19900288

約数列:

[1, 2, 4, 8, 41, 82, 164, 241, 269, 328, 482, 538, 964, 1076, 1928, 2152, 9881, 11029, 19762, 22058, 39524, 44116, 64829, 79048, 88232, 129658, 259316, 518632, 2657989, 5315978, 10631956, 21263912]

約数ペア:

[(1, 21263912), (2, 10631956), (4, 5315978), (8, 2657989), (41, 518632), (82, 259316), (164, 129658), (241, 88232), (269, 79048), (328, 64829), (482, 44116), (538, 39524), (964, 22058), (1076, 19762), (1928, 11029), (2152, 9881)]