21415545

素因数分解:

$3^2\times 5^1\times {\mathrm{67}}^1\times {\mathrm{7103}}^1$

素因数の和:7181

約数の個数: 24

約数和(自身を含む): 37679616

約数和(自身を除く): 16264071

約数列:

[1, 3, 5, 9, 15, 45, 67, 201, 335, 603, 1005, 3015, 7103, 21309, 35515, 63927, 106545, 319635, 475901, 1427703, 2379505, 4283109, 7138515, 21415545]

約数ペア:

[(1, 21415545), (3, 7138515), (5, 4283109), (9, 2379505), (15, 1427703), (45, 475901), (67, 319635), (201, 106545), (335, 63927), (603, 35515), (1005, 21309), (3015, 7103)]