21492484

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{4261}}^1$

素因数の和:4375

約数の個数: 24

約数和(自身を含む): 40932248

約数和(自身を除く): 19439764

約数列:

[1, 2, 4, 13, 26, 52, 97, 194, 388, 1261, 2522, 4261, 5044, 8522, 17044, 55393, 110786, 221572, 413317, 826634, 1653268, 5373121, 10746242, 21492484]

約数ペア:

[(1, 21492484), (2, 10746242), (4, 5373121), (13, 1653268), (26, 826634), (52, 413317), (97, 221572), (194, 110786), (388, 55393), (1261, 17044), (2522, 8522), (4261, 5044)]