18821115

素因数分解:

$3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{22013}}^1$

素因数の和:22043

約数の個数: 24

約数和(自身を含む): 34341840

約数和(自身を除く): 15520725

約数列:

[1, 3, 5, 9, 15, 19, 45, 57, 95, 171, 285, 855, 22013, 66039, 110065, 198117, 330195, 418247, 990585, 1254741, 2091235, 3764223, 6273705, 18821115]

約数ペア:

[(1, 18821115), (3, 6273705), (5, 3764223), (9, 2091235), (15, 1254741), (19, 990585), (45, 418247), (57, 330195), (95, 198117), (171, 110065), (285, 66039), (855, 22013)]