21684418

素因数分解:

$2^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{179}}^1\times {\mathrm{509}}^1$

素因数の和:714

約数の個数: 32

約数和(自身を含む): 39657600

約数和(自身を除く): 17973182

約数列:

[1, 2, 7, 14, 17, 34, 119, 179, 238, 358, 509, 1018, 1253, 2506, 3043, 3563, 6086, 7126, 8653, 17306, 21301, 42602, 60571, 91111, 121142, 182222, 637777, 1275554, 1548887, 3097774, 10842209, 21684418]

約数ペア:

[(1, 21684418), (2, 10842209), (7, 3097774), (14, 1548887), (17, 1275554), (34, 637777), (119, 182222), (179, 121142), (238, 91111), (358, 60571), (509, 42602), (1018, 21301), (1253, 17306), (2506, 8653), (3043, 7126), (3563, 6086)]