21760545

素因数分解:

$3^1\times 5^1\times {\mathrm{41}}^2\times {\mathrm{863}}^1$

素因数の和:953

約数の個数: 24

約数和(自身を含む): 35728128

約数和(自身を除く): 13967583

約数列:

[1, 3, 5, 15, 41, 123, 205, 615, 863, 1681, 2589, 4315, 5043, 8405, 12945, 25215, 35383, 106149, 176915, 530745, 1450703, 4352109, 7253515, 21760545]

約数ペア:

[(1, 21760545), (3, 7253515), (5, 4352109), (15, 1450703), (41, 530745), (123, 176915), (205, 106149), (615, 35383), (863, 25215), (1681, 12945), (2589, 8405), (4315, 5043)]