178520643

素因数分解:

$3^2\times 7^1\times {\mathrm{97}}^1\times {\mathrm{131}}^1\times {\mathrm{223}}^1$

素因数の和:464

約数の個数: 48

約数和(自身を含む): 301357056

約数和(自身を除く): 122836413

約数列:

[1, 3, 7, 9, 21, 63, 97, 131, 223, 291, 393, 669, 679, 873, 917, 1179, 1561, 2007, 2037, 2751, 4683, 6111, 8253, 12707, 14049, 21631, 29213, 38121, 64893, 87639, 88949, 114363, 151417, 194679, 204491, 262917, 266847, 454251, 613473, 800541, 1362753, 1840419, 2833661, 8500983, 19835627, 25502949, 59506881, 178520643]

約数ペア:

[(1, 178520643), (3, 59506881), (7, 25502949), (9, 19835627), (21, 8500983), (63, 2833661), (97, 1840419), (131, 1362753), (223, 800541), (291, 613473), (393, 454251), (669, 266847), (679, 262917), (873, 204491), (917, 194679), (1179, 151417), (1561, 114363), (2007, 88949), (2037, 87639), (2751, 64893), (4683, 38121), (6111, 29213), (8253, 21631), (12707, 14049)]