28707105

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{11887}}^1$

素因数の和:11925

約数の個数: 32

約数和(自身を含む): 54779904

約数和(自身を除く): 26072799

約数列:

[1, 3, 5, 7, 15, 21, 23, 35, 69, 105, 115, 161, 345, 483, 805, 2415, 11887, 35661, 59435, 83209, 178305, 249627, 273401, 416045, 820203, 1248135, 1367005, 1913807, 4101015, 5741421, 9569035, 28707105]

約数ペア:

[(1, 28707105), (3, 9569035), (5, 5741421), (7, 4101015), (15, 1913807), (21, 1367005), (23, 1248135), (35, 820203), (69, 416045), (105, 273401), (115, 249627), (161, 178305), (345, 83209), (483, 59435), (805, 35661), (2415, 11887)]