19835384

素因数分解:

$2^3\times {\mathrm{23}}^2\times {\mathrm{43}}^1\times {\mathrm{109}}^1$

素因数の和:204

約数の個数: 48

約数和(自身を含む): 40147800

約数和(自身を除く): 20312416

約数列:

[1, 2, 4, 8, 23, 43, 46, 86, 92, 109, 172, 184, 218, 344, 436, 529, 872, 989, 1058, 1978, 2116, 2507, 3956, 4232, 4687, 5014, 7912, 9374, 10028, 18748, 20056, 22747, 37496, 45494, 57661, 90988, 107801, 115322, 181976, 215602, 230644, 431204, 461288, 862408, 2479423, 4958846, 9917692, 19835384]

約数ペア:

[(1, 19835384), (2, 9917692), (4, 4958846), (8, 2479423), (23, 862408), (43, 461288), (46, 431204), (86, 230644), (92, 215602), (109, 181976), (172, 115322), (184, 107801), (218, 90988), (344, 57661), (436, 45494), (529, 37496), (872, 22747), (989, 20056), (1058, 18748), (1978, 10028), (2116, 9374), (2507, 7912), (3956, 5014), (4232, 4687)]