21976190

素因数分解:

$2^1\times 5^1\times {\mathrm{173}}^1\times {\mathrm{12703}}^1$

素因数の和:12883

約数の個数: 16

約数和(自身を含む): 39788928

約数和(自身を除く): 17812738

約数列:

[1, 2, 5, 10, 173, 346, 865, 1730, 12703, 25406, 63515, 127030, 2197619, 4395238, 10988095, 21976190]

約数ペア:

[(1, 21976190), (2, 10988095), (5, 4395238), (10, 2197619), (173, 127030), (346, 63515), (865, 25406), (1730, 12703)]