213017812

素因数分解:

$2^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{79}}^2$

素因数の和:245

約数の個数: 72

約数和(自身を含む): 458752896

約数和(自身を除く): 245735084

約数列:

[1, 2, 4, 7, 14, 23, 28, 46, 53, 79, 92, 106, 158, 161, 212, 316, 322, 371, 553, 644, 742, 1106, 1219, 1484, 1817, 2212, 2438, 3634, 4187, 4876, 6241, 7268, 8374, 8533, 12482, 12719, 16748, 17066, 24964, 25438, 29309, 34132, 43687, 50876, 58618, 87374, 96301, 117236, 143543, 174748, 192602, 287086, 330773, 385204, 574172, 661546, 674107, 1004801, 1323092, 1348214, 2009602, 2315411, 2696428, 4019204, 4630822, 7607779, 9261644, 15215558, 30431116, 53254453, 106508906, 213017812]

約数ペア:

[(1, 213017812), (2, 106508906), (4, 53254453), (7, 30431116), (14, 15215558), (23, 9261644), (28, 7607779), (46, 4630822), (53, 4019204), (79, 2696428), (92, 2315411), (106, 2009602), (158, 1348214), (161, 1323092), (212, 1004801), (316, 674107), (322, 661546), (371, 574172), (553, 385204), (644, 330773), (742, 287086), (1106, 192602), (1219, 174748), (1484, 143543), (1817, 117236), (2212, 96301), (2438, 87374), (3634, 58618), (4187, 50876), (4876, 43687), (6241, 34132), (7268, 29309), (8374, 25438), (8533, 24964), (12482, 17066), (12719, 16748)]