21725685

素因数分解:

$3^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{6997}}^1$

素因数の和:7034

約数の個数: 32

約数和(自身を含む): 40308480

約数和(自身を除く): 18582795

約数列:

[1, 3, 5, 9, 15, 23, 27, 45, 69, 115, 135, 207, 345, 621, 1035, 3105, 6997, 20991, 34985, 62973, 104955, 160931, 188919, 314865, 482793, 804655, 944595, 1448379, 2413965, 4345137, 7241895, 21725685]

約数ペア:

[(1, 21725685), (3, 7241895), (5, 4345137), (9, 2413965), (15, 1448379), (23, 944595), (27, 804655), (45, 482793), (69, 314865), (115, 188919), (135, 160931), (207, 104955), (345, 62973), (621, 34985), (1035, 20991), (3105, 6997)]