21795225

素因数分解:

$3^1\times 5^2\times {\mathrm{71}}^1\times {\mathrm{4093}}^1$

素因数の和:4177

約数の個数: 24

約数和(自身を含む): 36551232

約数和(自身を除く): 14756007

約数列:

[1, 3, 5, 15, 25, 71, 75, 213, 355, 1065, 1775, 4093, 5325, 12279, 20465, 61395, 102325, 290603, 306975, 871809, 1453015, 4359045, 7265075, 21795225]

約数ペア:

[(1, 21795225), (3, 7265075), (5, 4359045), (15, 1453015), (25, 871809), (71, 306975), (75, 290603), (213, 102325), (355, 61395), (1065, 20465), (1775, 12279), (4093, 5325)]