21385354

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{23}}^2\times {\mathrm{29}}^1\times {\mathrm{41}}^1$

素因数の和:135

約数の個数: 48

約数和(自身を含む): 37626120

約数和(自身を除く): 16240766

約数列:

[1, 2, 17, 23, 29, 34, 41, 46, 58, 82, 391, 493, 529, 667, 697, 782, 943, 986, 1058, 1189, 1334, 1394, 1886, 2378, 8993, 11339, 15341, 16031, 17986, 20213, 21689, 22678, 27347, 30682, 32062, 40426, 43378, 54694, 260797, 368713, 464899, 521594, 628981, 737426, 929798, 1257962, 10692677, 21385354]

約数ペア:

[(1, 21385354), (2, 10692677), (17, 1257962), (23, 929798), (29, 737426), (34, 628981), (41, 521594), (46, 464899), (58, 368713), (82, 260797), (391, 54694), (493, 43378), (529, 40426), (667, 32062), (697, 30682), (782, 27347), (943, 22678), (986, 21689), (1058, 20213), (1189, 17986), (1334, 16031), (1394, 15341), (1886, 11339), (2378, 8993)]