21517304

素因数分解:

$2^3\times {\mathrm{29}}^1\times {\mathrm{163}}^1\times {\mathrm{569}}^1$

素因数の和:767

約数の個数: 32

約数和(自身を含む): 42066000

約数和(自身を除く): 20548696

約数列:

[1, 2, 4, 8, 29, 58, 116, 163, 232, 326, 569, 652, 1138, 1304, 2276, 4552, 4727, 9454, 16501, 18908, 33002, 37816, 66004, 92747, 132008, 185494, 370988, 741976, 2689663, 5379326, 10758652, 21517304]

約数ペア:

[(1, 21517304), (2, 10758652), (4, 5379326), (8, 2689663), (29, 741976), (58, 370988), (116, 185494), (163, 132008), (232, 92747), (326, 66004), (569, 37816), (652, 33002), (1138, 18908), (1304, 16501), (2276, 9454), (4552, 4727)]