20898225

素因数分解:

$3^2\times 5^2\times {\mathrm{293}}^1\times {\mathrm{317}}^1$

素因数の和:626

約数の個数: 36

約数和(自身を含む): 37677276

約数和(自身を除く): 16779051

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 225, 293, 317, 879, 951, 1465, 1585, 2637, 2853, 4395, 4755, 7325, 7925, 13185, 14265, 21975, 23775, 65925, 71325, 92881, 278643, 464405, 835929, 1393215, 2322025, 4179645, 6966075, 20898225]

約数ペア:

[(1, 20898225), (3, 6966075), (5, 4179645), (9, 2322025), (15, 1393215), (25, 835929), (45, 464405), (75, 278643), (225, 92881), (293, 71325), (317, 65925), (879, 23775), (951, 21975), (1465, 14265), (1585, 13185), (2637, 7925), (2853, 7325), (4395, 4755)]