21977140

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{35447}}^1$

素因数の和:35487

約数の個数: 24

約数和(自身を含む): 47642112

約数和(自身を除く): 25664972

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 35447, 70894, 141788, 177235, 354470, 708940, 1098857, 2197714, 4395428, 5494285, 10988570, 21977140]

約数ペア:

[(1, 21977140), (2, 10988570), (4, 5494285), (5, 4395428), (10, 2197714), (20, 1098857), (31, 708940), (62, 354470), (124, 177235), (155, 141788), (310, 70894), (620, 35447)]