21560875

素因数分解:

$5^3\times 7^1\times {\mathrm{41}}^1\times {\mathrm{601}}^1$

素因数の和:664

約数の個数: 32

約数和(自身を含む): 31554432

約数和(自身を除く): 9993557

約数列:

[1, 5, 7, 25, 35, 41, 125, 175, 205, 287, 601, 875, 1025, 1435, 3005, 4207, 5125, 7175, 15025, 21035, 24641, 35875, 75125, 105175, 123205, 172487, 525875, 616025, 862435, 3080125, 4312175, 21560875]

約数ペア:

[(1, 21560875), (5, 4312175), (7, 3080125), (25, 862435), (35, 616025), (41, 525875), (125, 172487), (175, 123205), (205, 105175), (287, 75125), (601, 35875), (875, 24641), (1025, 21035), (1435, 15025), (3005, 7175), (4207, 5125)]