21301085

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{521}}^1$

素因数の和:593

約数の個数: 32

約数和(自身を含む): 29992032

約数和(自身を除く): 8690947

約数列:

[1, 5, 13, 17, 37, 65, 85, 185, 221, 481, 521, 629, 1105, 2405, 2605, 3145, 6773, 8177, 8857, 19277, 33865, 40885, 44285, 96385, 115141, 250601, 327709, 575705, 1253005, 1638545, 4260217, 21301085]

約数ペア:

[(1, 21301085), (5, 4260217), (13, 1638545), (17, 1253005), (37, 575705), (65, 327709), (85, 250601), (185, 115141), (221, 96385), (481, 44285), (521, 40885), (629, 33865), (1105, 19277), (2405, 8857), (2605, 8177), (3145, 6773)]