18880653

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{109}}^1\times {\mathrm{181}}^1$

素因数の和:333

約数の個数: 32

約数和(自身を含む): 28828800

約数和(自身を除く): 9948147

約数列:

[1, 3, 11, 29, 33, 87, 109, 181, 319, 327, 543, 957, 1199, 1991, 3161, 3597, 5249, 5973, 9483, 15747, 19729, 34771, 57739, 59187, 104313, 173217, 217019, 572141, 651057, 1716423, 6293551, 18880653]

約数ペア:

[(1, 18880653), (3, 6293551), (11, 1716423), (29, 651057), (33, 572141), (87, 217019), (109, 173217), (181, 104313), (319, 59187), (327, 57739), (543, 34771), (957, 19729), (1199, 15747), (1991, 9483), (3161, 5973), (3597, 5249)]