20619954

素因数分解:

$2^1\times 3^3\times {\mathrm{383}}^1\times {\mathrm{997}}^1$

素因数の和:1391

約数の個数: 32

約数和(自身を含む): 45987840

約数和(自身を除く): 25367886

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 383, 766, 997, 1149, 1994, 2298, 2991, 3447, 5982, 6894, 8973, 10341, 17946, 20682, 26919, 53838, 381851, 763702, 1145553, 2291106, 3436659, 6873318, 10309977, 20619954]

約数ペア:

[(1, 20619954), (2, 10309977), (3, 6873318), (6, 3436659), (9, 2291106), (18, 1145553), (27, 763702), (54, 381851), (383, 53838), (766, 26919), (997, 20682), (1149, 17946), (1994, 10341), (2298, 8973), (2991, 6894), (3447, 5982)]