20878454

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{197}}^1\times {\mathrm{2789}}^1$

素因数の和:3007

約数の個数: 16

約数和(自身を含む): 33145200

約数和(自身を除く): 12266746

約数列:

[1, 2, 19, 38, 197, 394, 2789, 3743, 5578, 7486, 52991, 105982, 549433, 1098866, 10439227, 20878454]

約数ペア:

[(1, 20878454), (2, 10439227), (19, 1098866), (38, 549433), (197, 105982), (394, 52991), (2789, 7486), (3743, 5578)]