21765465

素因数分解:

$3^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{47}}^1\times {\mathrm{251}}^1$

素因数の和:350

約数の個数: 48

約数和(自身を含む): 39626496

約数和(自身を除く): 17861031

約数列:

[1, 3, 5, 9, 15, 41, 45, 47, 123, 141, 205, 235, 251, 369, 423, 615, 705, 753, 1255, 1845, 1927, 2115, 2259, 3765, 5781, 9635, 10291, 11295, 11797, 17343, 28905, 30873, 35391, 51455, 58985, 86715, 92619, 106173, 154365, 176955, 463095, 483677, 530865, 1451031, 2418385, 4353093, 7255155, 21765465]

約数ペア:

[(1, 21765465), (3, 7255155), (5, 4353093), (9, 2418385), (15, 1451031), (41, 530865), (45, 483677), (47, 463095), (123, 176955), (141, 154365), (205, 106173), (235, 92619), (251, 86715), (369, 58985), (423, 51455), (615, 35391), (705, 30873), (753, 28905), (1255, 17343), (1845, 11797), (1927, 11295), (2115, 10291), (2259, 9635), (3765, 5781)]