20181044

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{4001}}^1$

素因数の和:4115

約数の個数: 24

約数和(自身を含む): 38435208

約数和(自身を除く): 18254164

約数列:

[1, 2, 4, 13, 26, 52, 97, 194, 388, 1261, 2522, 4001, 5044, 8002, 16004, 52013, 104026, 208052, 388097, 776194, 1552388, 5045261, 10090522, 20181044]

約数ペア:

[(1, 20181044), (2, 10090522), (4, 5045261), (13, 1552388), (26, 776194), (52, 388097), (97, 208052), (194, 104026), (388, 52013), (1261, 16004), (2522, 8002), (4001, 5044)]