20995344

素因数分解:

$2^4\times 3^2\times {\mathrm{211}}^1\times {\mathrm{691}}^1$

素因数の和:916

約数の個数: 60

約数和(自身を含む): 59121712

約数和(自身を除く): 38126368

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 48, 72, 144, 211, 422, 633, 691, 844, 1266, 1382, 1688, 1899, 2073, 2532, 2764, 3376, 3798, 4146, 5064, 5528, 6219, 7596, 8292, 10128, 11056, 12438, 15192, 16584, 24876, 30384, 33168, 49752, 99504, 145801, 291602, 437403, 583204, 874806, 1166408, 1312209, 1749612, 2332816, 2624418, 3499224, 5248836, 6998448, 10497672, 20995344]

約数ペア:

[(1, 20995344), (2, 10497672), (3, 6998448), (4, 5248836), (6, 3499224), (8, 2624418), (9, 2332816), (12, 1749612), (16, 1312209), (18, 1166408), (24, 874806), (36, 583204), (48, 437403), (72, 291602), (144, 145801), (211, 99504), (422, 49752), (633, 33168), (691, 30384), (844, 24876), (1266, 16584), (1382, 15192), (1688, 12438), (1899, 11056), (2073, 10128), (2532, 8292), (2764, 7596), (3376, 6219), (3798, 5528), (4146, 5064)]