21814731

素因数分解:

$3^3\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{389}}^1$

素因数の和:496

約数の個数: 32

約数和(自身を含む): 33945600

約数和(自身を除く): 12130869

約数列:

[1, 3, 9, 27, 31, 67, 93, 201, 279, 389, 603, 837, 1167, 1809, 2077, 3501, 6231, 10503, 12059, 18693, 26063, 36177, 56079, 78189, 108531, 234567, 325593, 703701, 807953, 2423859, 7271577, 21814731]

約数ペア:

[(1, 21814731), (3, 7271577), (9, 2423859), (27, 807953), (31, 703701), (67, 325593), (93, 234567), (201, 108531), (279, 78189), (389, 56079), (603, 36177), (837, 26063), (1167, 18693), (1809, 12059), (2077, 10503), (3501, 6231)]