21977870

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{131}}^1\times {\mathrm{883}}^1$

素因数の和:1040

約数の個数: 32

約数和(自身を含む): 42007680

約数和(自身を除く): 20029810

約数列:

[1, 2, 5, 10, 19, 38, 95, 131, 190, 262, 655, 883, 1310, 1766, 2489, 4415, 4978, 8830, 12445, 16777, 24890, 33554, 83885, 115673, 167770, 231346, 578365, 1156730, 2197787, 4395574, 10988935, 21977870]

約数ペア:

[(1, 21977870), (2, 10988935), (5, 4395574), (10, 2197787), (19, 1156730), (38, 578365), (95, 231346), (131, 167770), (190, 115673), (262, 83885), (655, 33554), (883, 24890), (1310, 16777), (1766, 12445), (2489, 8830), (4415, 4978)]