18697844

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{409}}^1\times {\mathrm{1039}}^1$

素因数の和:1463

約数の個数: 24

約数和(自身を含む): 35817600

約数和(自身を除く): 17119756

約数列:

[1, 2, 4, 11, 22, 44, 409, 818, 1039, 1636, 2078, 4156, 4499, 8998, 11429, 17996, 22858, 45716, 424951, 849902, 1699804, 4674461, 9348922, 18697844]

約数ペア:

[(1, 18697844), (2, 9348922), (4, 4674461), (11, 1699804), (22, 849902), (44, 424951), (409, 45716), (818, 22858), (1039, 17996), (1636, 11429), (2078, 8998), (4156, 4499)]