21645675

素因数分解:

$3^2\times 5^2\times {\mathrm{17}}^1\times {\mathrm{5659}}^1$

素因数の和:5692

約数の個数: 36

約数和(自身を含む): 41057640

約数和(自身を除く): 19411965

約数列:

[1, 3, 5, 9, 15, 17, 25, 45, 51, 75, 85, 153, 225, 255, 425, 765, 1275, 3825, 5659, 16977, 28295, 50931, 84885, 96203, 141475, 254655, 288609, 424425, 481015, 865827, 1273275, 1443045, 2405075, 4329135, 7215225, 21645675]

約数ペア:

[(1, 21645675), (3, 7215225), (5, 4329135), (9, 2405075), (15, 1443045), (17, 1273275), (25, 865827), (45, 481015), (51, 424425), (75, 288609), (85, 254655), (153, 141475), (225, 96203), (255, 84885), (425, 50931), (765, 28295), (1275, 16977), (3825, 5659)]