252105

素因数分解:

$3^1\times 5^1\times 7^5$

素因数の和:43

約数の個数: 24

約数和(自身を含む): 470592

約数和(自身を除く): 218487

約数列:

[1, 3, 5, 7, 15, 21, 35, 49, 105, 147, 245, 343, 735, 1029, 1715, 2401, 5145, 7203, 12005, 16807, 36015, 50421, 84035, 252105]

約数ペア:

[(1, 252105), (3, 84035), (5, 50421), (7, 36015), (15, 16807), (21, 12005), (35, 7203), (49, 5145), (105, 2401), (147, 1715), (245, 1029), (343, 735)]