19720386

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{156511}}^1$

素因数の和:156526

約数の個数: 24

約数和(自身を含む): 48831744

約数和(自身を除く): 29111358

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 126, 156511, 313022, 469533, 939066, 1095577, 1408599, 2191154, 2817198, 3286731, 6573462, 9860193, 19720386]

約数ペア:

[(1, 19720386), (2, 9860193), (3, 6573462), (6, 3286731), (7, 2817198), (9, 2191154), (14, 1408599), (18, 1095577), (21, 939066), (42, 469533), (63, 313022), (126, 156511)]