18911888

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{3023}}^1$

素因数の和:3071

約数の個数: 40

約数和(自身を含む): 40497408

約数和(自身を除く): 21585520

約数列:

[1, 2, 4, 8, 16, 17, 23, 34, 46, 68, 92, 136, 184, 272, 368, 391, 782, 1564, 3023, 3128, 6046, 6256, 12092, 24184, 48368, 51391, 69529, 102782, 139058, 205564, 278116, 411128, 556232, 822256, 1112464, 1181993, 2363986, 4727972, 9455944, 18911888]

約数ペア:

[(1, 18911888), (2, 9455944), (4, 4727972), (8, 2363986), (16, 1181993), (17, 1112464), (23, 822256), (34, 556232), (46, 411128), (68, 278116), (92, 205564), (136, 139058), (184, 102782), (272, 69529), (368, 51391), (391, 48368), (782, 24184), (1564, 12092), (3023, 6256), (3128, 6046)]