21180068

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{1877}}^1$

素因数の和:1932

約数の個数: 48

約数和(自身を含む): 47115264

約数和(自身を除く): 25935196

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 31, 52, 62, 91, 124, 182, 217, 364, 403, 434, 806, 868, 1612, 1877, 2821, 3754, 5642, 7508, 11284, 13139, 24401, 26278, 48802, 52556, 58187, 97604, 116374, 170807, 232748, 341614, 407309, 683228, 756431, 814618, 1512862, 1629236, 3025724, 5295017, 10590034, 21180068]

約数ペア:

[(1, 21180068), (2, 10590034), (4, 5295017), (7, 3025724), (13, 1629236), (14, 1512862), (26, 814618), (28, 756431), (31, 683228), (52, 407309), (62, 341614), (91, 232748), (124, 170807), (182, 116374), (217, 97604), (364, 58187), (403, 52556), (434, 48802), (806, 26278), (868, 24401), (1612, 13139), (1877, 11284), (2821, 7508), (3754, 5642)]