20996654

素因数分解:

$2^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{197}}^1\times {\mathrm{331}}^1$

素因数の和:560

約数の個数: 32

約数和(自身を含む): 37863936

約数和(自身を除く): 16867282

約数列:

[1, 2, 7, 14, 23, 46, 161, 197, 322, 331, 394, 662, 1379, 2317, 2758, 4531, 4634, 7613, 9062, 15226, 31717, 53291, 63434, 65207, 106582, 130414, 456449, 912898, 1499761, 2999522, 10498327, 20996654]

約数ペア:

[(1, 20996654), (2, 10498327), (7, 2999522), (14, 1499761), (23, 912898), (46, 456449), (161, 130414), (197, 106582), (322, 65207), (331, 63434), (394, 53291), (662, 31717), (1379, 15226), (2317, 9062), (2758, 7613), (4531, 4634)]