21754103679

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{397357}}^1$

素因数の和:397460

約数の個数: 48

約数和(自身を含む): 39672222720

約数和(自身を除く): 17918119041

約数列:

[1, 3, 7, 9, 11, 21, 33, 63, 77, 79, 99, 231, 237, 553, 693, 711, 869, 1659, 2607, 4977, 6083, 7821, 18249, 54747, 397357, 1192071, 2781499, 3576213, 4370927, 8344497, 13112781, 25033491, 30596489, 31391203, 39338343, 91789467, 94173609, 219738421, 275368401, 282520827, 345303233, 659215263, 1035909699, 1977645789, 2417122631, 3107729097, 7251367893, 21754103679]

約数ペア:

[(1, 21754103679), (3, 7251367893), (7, 3107729097), (9, 2417122631), (11, 1977645789), (21, 1035909699), (33, 659215263), (63, 345303233), (77, 282520827), (79, 275368401), (99, 219738421), (231, 94173609), (237, 91789467), (553, 39338343), (693, 31391203), (711, 30596489), (869, 25033491), (1659, 13112781), (2607, 8344497), (4977, 4370927), (6083, 3576213), (7821, 2781499), (18249, 1192071), (54747, 397357)]