28191933

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{2393}}^1$

素因数の和:2434

約数の個数: 48

約数和(自身を含む): 53778816

約数和(自身を除く): 25586883

約数列:

[1, 3, 7, 9, 11, 17, 21, 33, 51, 63, 77, 99, 119, 153, 187, 231, 357, 561, 693, 1071, 1309, 1683, 2393, 3927, 7179, 11781, 16751, 21537, 26323, 40681, 50253, 78969, 122043, 150759, 184261, 236907, 284767, 366129, 447491, 552783, 854301, 1342473, 1658349, 2562903, 3132437, 4027419, 9397311, 28191933]

約数ペア:

[(1, 28191933), (3, 9397311), (7, 4027419), (9, 3132437), (11, 2562903), (17, 1658349), (21, 1342473), (33, 854301), (51, 552783), (63, 447491), (77, 366129), (99, 284767), (119, 236907), (153, 184261), (187, 150759), (231, 122043), (357, 78969), (561, 50253), (693, 40681), (1071, 26323), (1309, 21537), (1683, 16751), (2393, 11781), (3927, 7179)]