19663664

素因数分解:

$2^4\times {\mathrm{127}}^1\times {\mathrm{9677}}^1$

素因数の和:9812

約数の個数: 20

約数和(自身を含む): 38402304

約数和(自身を除く): 18738640

約数列:

[1, 2, 4, 8, 16, 127, 254, 508, 1016, 2032, 9677, 19354, 38708, 77416, 154832, 1228979, 2457958, 4915916, 9831832, 19663664]

約数ペア:

[(1, 19663664), (2, 9831832), (4, 4915916), (8, 2457958), (16, 1228979), (127, 154832), (254, 77416), (508, 38708), (1016, 19354), (2032, 9677)]