18686367

素因数分解:

$3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{233}}^1$

素因数の和:332

約数の個数: 48

約数和(自身を含む): 33096960

約数和(自身を除く): 14410593

約数列:

[1, 3, 7, 9, 19, 21, 57, 63, 67, 133, 171, 201, 233, 399, 469, 603, 699, 1197, 1273, 1407, 1631, 2097, 3819, 4221, 4427, 4893, 8911, 11457, 13281, 14679, 15611, 26733, 30989, 39843, 46833, 80199, 92967, 109277, 140499, 278901, 296609, 327831, 889827, 983493, 2076263, 2669481, 6228789, 18686367]

約数ペア:

[(1, 18686367), (3, 6228789), (7, 2669481), (9, 2076263), (19, 983493), (21, 889827), (57, 327831), (63, 296609), (67, 278901), (133, 140499), (171, 109277), (201, 92967), (233, 80199), (399, 46833), (469, 39843), (603, 30989), (699, 26733), (1197, 15611), (1273, 14679), (1407, 13281), (1631, 11457), (2097, 8911), (3819, 4893), (4221, 4427)]