21973775

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{149}}^1\times {\mathrm{347}}^1$

素因数の和:523

約数の個数: 24

約数和(自身を含む): 29127600

約数和(自身を除く): 7153825

約数列:

[1, 5, 17, 25, 85, 149, 347, 425, 745, 1735, 2533, 3725, 5899, 8675, 12665, 29495, 51703, 63325, 147475, 258515, 878951, 1292575, 4394755, 21973775]

約数ペア:

[(1, 21973775), (5, 4394755), (17, 1292575), (25, 878951), (85, 258515), (149, 147475), (347, 63325), (425, 51703), (745, 29495), (1735, 12665), (2533, 8675), (3725, 5899)]