2021981175

素因数分解:

$3^2\times 5^2\times {\mathrm{23}}^1\times {\mathrm{390721}}^1$

素因数の和:390760

約数の個数: 36

約数和(自身を含む): 3779063184

約数和(自身を除く): 1757082009

約数列:

[1, 3, 5, 9, 15, 23, 25, 45, 69, 75, 115, 207, 225, 345, 575, 1035, 1725, 5175, 390721, 1172163, 1953605, 3516489, 5860815, 8986583, 9768025, 17582445, 26959749, 29304075, 44932915, 80879247, 87912225, 134798745, 224664575, 404396235, 673993725, 2021981175]

約数ペア:

[(1, 2021981175), (3, 673993725), (5, 404396235), (9, 224664575), (15, 134798745), (23, 87912225), (25, 80879247), (45, 44932915), (69, 29304075), (75, 26959749), (115, 17582445), (207, 9768025), (225, 8986583), (345, 5860815), (575, 3516489), (1035, 1953605), (1725, 1172163), (5175, 390721)]