20109855

素因数分解:

$3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{59}}^1\times {\mathrm{733}}^1$

素因数の和:831

約数の個数: 32

約数和(自身を含む): 33822720

約数和(自身を除く): 13712865

約数列:

[1, 3, 5, 15, 31, 59, 93, 155, 177, 295, 465, 733, 885, 1829, 2199, 3665, 5487, 9145, 10995, 22723, 27435, 43247, 68169, 113615, 129741, 216235, 340845, 648705, 1340657, 4021971, 6703285, 20109855]

約数ペア:

[(1, 20109855), (3, 6703285), (5, 4021971), (15, 1340657), (31, 648705), (59, 340845), (93, 216235), (155, 129741), (177, 113615), (295, 68169), (465, 43247), (733, 27435), (885, 22723), (1829, 10995), (2199, 9145), (3665, 5487)]