19993425

素因数分解:

$3^1\times 5^2\times {\mathrm{269}}^1\times {\mathrm{991}}^1$

素因数の和:1273

約数の個数: 24

約数和(自身を含む): 33212160

約数和(自身を除く): 13218735

約数列:

[1, 3, 5, 15, 25, 75, 269, 807, 991, 1345, 2973, 4035, 4955, 6725, 14865, 20175, 24775, 74325, 266579, 799737, 1332895, 3998685, 6664475, 19993425]

約数ペア:

[(1, 19993425), (3, 6664475), (5, 3998685), (15, 1332895), (25, 799737), (75, 266579), (269, 74325), (807, 24775), (991, 20175), (1345, 14865), (2973, 6725), (4035, 4955)]