21684872

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{7949}}^1$

素因数の和:7997

約数の個数: 32

約数和(自身を含む): 45792000

約数和(自身を除く): 24107128

約数列:

[1, 2, 4, 8, 11, 22, 31, 44, 62, 88, 124, 248, 341, 682, 1364, 2728, 7949, 15898, 31796, 63592, 87439, 174878, 246419, 349756, 492838, 699512, 985676, 1971352, 2710609, 5421218, 10842436, 21684872]

約数ペア:

[(1, 21684872), (2, 10842436), (4, 5421218), (8, 2710609), (11, 1971352), (22, 985676), (31, 699512), (44, 492838), (62, 349756), (88, 246419), (124, 174878), (248, 87439), (341, 63592), (682, 31796), (1364, 15898), (2728, 7949)]