639564579

素因数分解:

$3^5\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{1931}}^1$

素因数の和:2022

約数の個数: 48

約数和(自身を含む): 1012677120

約数和(自身を除く): 373112541

約数列:

[1, 3, 9, 27, 29, 47, 81, 87, 141, 243, 261, 423, 783, 1269, 1363, 1931, 2349, 3807, 4089, 5793, 7047, 11421, 12267, 17379, 36801, 52137, 55999, 90757, 110403, 156411, 167997, 272271, 331209, 469233, 503991, 816813, 1511973, 2450439, 2631953, 4535919, 7351317, 7895859, 13607757, 22053951, 23687577, 71062731, 213188193, 639564579]

約数ペア:

[(1, 639564579), (3, 213188193), (9, 71062731), (27, 23687577), (29, 22053951), (47, 13607757), (81, 7895859), (87, 7351317), (141, 4535919), (243, 2631953), (261, 2450439), (423, 1511973), (783, 816813), (1269, 503991), (1363, 469233), (1931, 331209), (2349, 272271), (3807, 167997), (4089, 156411), (5793, 110403), (7047, 90757), (11421, 55999), (12267, 52137), (17379, 36801)]