21492893191

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{151}}^1\times {\mathrm{179}}^1\times {\mathrm{449}}^1$

素因数の和:820

約数の個数: 64

約数和(自身を含む): 28366848000

約数和(自身を除く): 6873954809

約数列:

[1, 7, 11, 23, 77, 151, 161, 179, 253, 449, 1057, 1253, 1661, 1771, 1969, 3143, 3473, 4117, 4939, 10327, 11627, 13783, 24311, 27029, 28819, 34573, 38203, 45287, 67799, 72289, 80371, 113597, 189203, 267421, 297319, 317009, 474593, 562597, 621667, 745789, 795179, 884081, 1559377, 1848533, 2081233, 4351669, 5220523, 6188567, 6838337, 10915639, 12136021, 12939731, 17153147, 20333863, 47868359, 84952147, 120072029, 133496231, 142337041, 279128483, 934473617, 1953899381, 3070413313, 21492893191]

約数ペア:

[(1, 21492893191), (7, 3070413313), (11, 1953899381), (23, 934473617), (77, 279128483), (151, 142337041), (161, 133496231), (179, 120072029), (253, 84952147), (449, 47868359), (1057, 20333863), (1253, 17153147), (1661, 12939731), (1771, 12136021), (1969, 10915639), (3143, 6838337), (3473, 6188567), (4117, 5220523), (4939, 4351669), (10327, 2081233), (11627, 1848533), (13783, 1559377), (24311, 884081), (27029, 795179), (28819, 745789), (34573, 621667), (38203, 562597), (45287, 474593), (67799, 317009), (72289, 297319), (80371, 267421), (113597, 189203)]