18220848

素因数分解:

$2^4\times 3^1\times {\mathrm{19}}^1\times {\mathrm{19979}}^1$

素因数の和:20009

約数の個数: 40

約数和(自身を含む): 49550400

約数和(自身を除く): 31329552

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 19, 24, 38, 48, 57, 76, 114, 152, 228, 304, 456, 912, 19979, 39958, 59937, 79916, 119874, 159832, 239748, 319664, 379601, 479496, 759202, 958992, 1138803, 1518404, 2277606, 3036808, 4555212, 6073616, 9110424, 18220848]

約数ペア:

[(1, 18220848), (2, 9110424), (3, 6073616), (4, 4555212), (6, 3036808), (8, 2277606), (12, 1518404), (16, 1138803), (19, 958992), (24, 759202), (38, 479496), (48, 379601), (57, 319664), (76, 239748), (114, 159832), (152, 119874), (228, 79916), (304, 59937), (456, 39958), (912, 19979)]