21622725

素因数分解:

$3^2\times 5^2\times {\mathrm{17}}^1\times {\mathrm{5653}}^1$

素因数の和:5686

約数の個数: 36

約数和(自身を含む): 41014116

約数和(自身を除く): 19391391

約数列:

[1, 3, 5, 9, 15, 17, 25, 45, 51, 75, 85, 153, 225, 255, 425, 765, 1275, 3825, 5653, 16959, 28265, 50877, 84795, 96101, 141325, 254385, 288303, 423975, 480505, 864909, 1271925, 1441515, 2402525, 4324545, 7207575, 21622725]

約数ペア:

[(1, 21622725), (3, 7207575), (5, 4324545), (9, 2402525), (15, 1441515), (17, 1271925), (25, 864909), (45, 480505), (51, 423975), (75, 288303), (85, 254385), (153, 141325), (225, 96101), (255, 84795), (425, 50877), (765, 28265), (1275, 16959), (3825, 5653)]