21131274

素因数分解:

$2^1\times 3^1\times {\mathrm{31}}^1\times {\mathrm{103}}^1\times {\mathrm{1103}}^1$

素因数の和:1242

約数の個数: 32

約数和(自身を含む): 44089344

約数和(自身を除く): 22958070

約数列:

[1, 2, 3, 6, 31, 62, 93, 103, 186, 206, 309, 618, 1103, 2206, 3193, 3309, 6386, 6618, 9579, 19158, 34193, 68386, 102579, 113609, 205158, 227218, 340827, 681654, 3521879, 7043758, 10565637, 21131274]

約数ペア:

[(1, 21131274), (2, 10565637), (3, 7043758), (6, 3521879), (31, 681654), (62, 340827), (93, 227218), (103, 205158), (186, 113609), (206, 102579), (309, 68386), (618, 34193), (1103, 19158), (2206, 9579), (3193, 6618), (3309, 6386)]