20175941619

素因数分解:

$3^4\times {\mathrm{23}}^1\times {\mathrm{67}}^1\times {\mathrm{161639}}^1$

素因数の和:161741

約数の個数: 40

約数和(自身を含む): 31919374080

約数和(自身を除く): 11743432461

約数列:

[1, 3, 9, 23, 27, 67, 69, 81, 201, 207, 603, 621, 1541, 1809, 1863, 4623, 5427, 13869, 41607, 124821, 161639, 484917, 1454751, 3717697, 4364253, 10829813, 11153091, 13092759, 32489439, 33459273, 97468317, 100377819, 249085699, 292404951, 301133457, 747257097, 877214853, 2241771291, 6725313873, 20175941619]

約数ペア:

[(1, 20175941619), (3, 6725313873), (9, 2241771291), (23, 877214853), (27, 747257097), (67, 301133457), (69, 292404951), (81, 249085699), (201, 100377819), (207, 97468317), (603, 33459273), (621, 32489439), (1541, 13092759), (1809, 11153091), (1863, 10829813), (4623, 4364253), (5427, 3717697), (13869, 1454751), (41607, 484917), (124821, 161639)]