21443475

素因数分解:

$3^1\times 5^2\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{401}}^1$

素因数の和:468

約数の個数: 48

約数和(自身を含む): 38283264

約数和(自身を除く): 16839789

約数列:

[1, 3, 5, 15, 23, 25, 31, 69, 75, 93, 115, 155, 345, 401, 465, 575, 713, 775, 1203, 1725, 2005, 2139, 2325, 3565, 6015, 9223, 10025, 10695, 12431, 17825, 27669, 30075, 37293, 46115, 53475, 62155, 138345, 186465, 230575, 285913, 310775, 691725, 857739, 932325, 1429565, 4288695, 7147825, 21443475]

約数ペア:

[(1, 21443475), (3, 7147825), (5, 4288695), (15, 1429565), (23, 932325), (25, 857739), (31, 691725), (69, 310775), (75, 285913), (93, 230575), (115, 186465), (155, 138345), (345, 62155), (401, 53475), (465, 46115), (575, 37293), (713, 30075), (775, 27669), (1203, 17825), (1725, 12431), (2005, 10695), (2139, 10025), (2325, 9223), (3565, 6015)]