18893415

素因数分解:

$3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{991}}^1$

素因数の和:1071

約数の個数: 32

約数和(自身を含む): 31997952

約数和(自身を除く): 13104537

約数列:

[1, 3, 5, 15, 31, 41, 93, 123, 155, 205, 465, 615, 991, 1271, 2973, 3813, 4955, 6355, 14865, 19065, 30721, 40631, 92163, 121893, 153605, 203155, 460815, 609465, 1259561, 3778683, 6297805, 18893415]

約数ペア:

[(1, 18893415), (3, 6297805), (5, 3778683), (15, 1259561), (31, 609465), (41, 460815), (93, 203155), (123, 153605), (155, 121893), (205, 92163), (465, 40631), (615, 30721), (991, 19065), (1271, 14865), (2973, 6355), (3813, 4955)]