18679969

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{61}}^1\times {\mathrm{97}}^1$

素因数の和:217

約数の個数: 32

約数和(自身を含む): 24498432

約数和(自身を除く): 5818463

約数列:

[1, 7, 11, 41, 61, 77, 97, 287, 427, 451, 671, 679, 1067, 2501, 3157, 3977, 4697, 5917, 7469, 17507, 27511, 27839, 41419, 43747, 65087, 192577, 242597, 306229, 455609, 1698179, 2668567, 18679969]

約数ペア:

[(1, 18679969), (7, 2668567), (11, 1698179), (41, 455609), (61, 306229), (77, 242597), (97, 192577), (287, 65087), (427, 43747), (451, 41419), (671, 27839), (679, 27511), (1067, 17507), (2501, 7469), (3157, 5917), (3977, 4697)]