18504551

素因数分解:

${\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{73}}^1$

素因数の和:171

約数の個数: 32

約数和(自身を含む): 22675968

約数和(自身を除く): 4171417

約数列:

[1, 13, 17, 31, 37, 73, 221, 403, 481, 527, 629, 949, 1147, 1241, 2263, 2701, 6851, 8177, 14911, 16133, 19499, 29419, 35113, 38471, 45917, 83731, 253487, 500123, 596921, 1088503, 1423427, 18504551]

約数ペア:

[(1, 18504551), (13, 1423427), (17, 1088503), (31, 596921), (37, 500123), (73, 253487), (221, 83731), (403, 45917), (481, 38471), (527, 35113), (629, 29419), (949, 19499), (1147, 16133), (1241, 14911), (2263, 8177), (2701, 6851)]