21118374

素因数分解:

$2^1\times 3^3\times {\mathrm{263}}^1\times {\mathrm{1487}}^1$

素因数の和:1761

約数の個数: 32

約数和(自身を含む): 47139840

約数和(自身を除く): 26021466

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 263, 526, 789, 1487, 1578, 2367, 2974, 4461, 4734, 7101, 8922, 13383, 14202, 26766, 40149, 80298, 391081, 782162, 1173243, 2346486, 3519729, 7039458, 10559187, 21118374]

約数ペア:

[(1, 21118374), (2, 10559187), (3, 7039458), (6, 3519729), (9, 2346486), (18, 1173243), (27, 782162), (54, 391081), (263, 80298), (526, 40149), (789, 26766), (1487, 14202), (1578, 13383), (2367, 8922), (2974, 7101), (4461, 4734)]