18960249

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{211}}^1\times {\mathrm{389}}^1$

素因数の和:621

約数の個数: 32

約数和(自身を含む): 31749120

約数和(自身を除く): 12788871

約数列:

[1, 3, 7, 11, 21, 33, 77, 211, 231, 389, 633, 1167, 1477, 2321, 2723, 4279, 4431, 6963, 8169, 12837, 16247, 29953, 48741, 82079, 89859, 246237, 574553, 902869, 1723659, 2708607, 6320083, 18960249]

約数ペア:

[(1, 18960249), (3, 6320083), (7, 2708607), (11, 1723659), (21, 902869), (33, 574553), (77, 246237), (211, 89859), (231, 82079), (389, 48741), (633, 29953), (1167, 16247), (1477, 12837), (2321, 8169), (2723, 6963), (4279, 4431)]