38897721

素因数分解:

$3^2\times {\mathrm{67}}^1\times {\mathrm{251}}^1\times {\mathrm{257}}^1$

素因数の和:581

約数の個数: 24

約数和(自身を含む): 57474144

約数和(自身を除く): 18576423

約数列:

[1, 3, 9, 67, 201, 251, 257, 603, 753, 771, 2259, 2313, 16817, 17219, 50451, 51657, 64507, 151353, 154971, 193521, 580563, 4321969, 12965907, 38897721]

約数ペア:

[(1, 38897721), (3, 12965907), (9, 4321969), (67, 580563), (201, 193521), (251, 154971), (257, 151353), (603, 64507), (753, 51657), (771, 50451), (2259, 17219), (2313, 16817)]