21193235

素因数分解:

$5^1\times 7^2\times {\mathrm{23}}^1\times {\mathrm{3761}}^1$

素因数の和:3803

約数の個数: 24

約数和(自身を含む): 30878496

約数和(自身を除く): 9685261

約数列:

[1, 5, 7, 23, 35, 49, 115, 161, 245, 805, 1127, 3761, 5635, 18805, 26327, 86503, 131635, 184289, 432515, 605521, 921445, 3027605, 4238647, 21193235]

約数ペア:

[(1, 21193235), (5, 4238647), (7, 3027605), (23, 921445), (35, 605521), (49, 432515), (115, 184289), (161, 131635), (245, 86503), (805, 26327), (1127, 18805), (3761, 5635)]