21034338

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{547}}^1$

素因数の和:611

約数の個数: 64

約数和(自身を含む): 49714560

約数和(自身を除く): 28680222

約数列:

[1, 2, 3, 6, 13, 17, 26, 29, 34, 39, 51, 58, 78, 87, 102, 174, 221, 377, 442, 493, 547, 663, 754, 986, 1094, 1131, 1326, 1479, 1641, 2262, 2958, 3282, 6409, 7111, 9299, 12818, 14222, 15863, 18598, 19227, 21333, 27897, 31726, 38454, 42666, 47589, 55794, 95178, 120887, 206219, 241774, 269671, 362661, 412438, 539342, 618657, 725322, 809013, 1237314, 1618026, 3505723, 7011446, 10517169, 21034338]

約数ペア:

[(1, 21034338), (2, 10517169), (3, 7011446), (6, 3505723), (13, 1618026), (17, 1237314), (26, 809013), (29, 725322), (34, 618657), (39, 539342), (51, 412438), (58, 362661), (78, 269671), (87, 241774), (102, 206219), (174, 120887), (221, 95178), (377, 55794), (442, 47589), (493, 42666), (547, 38454), (663, 31726), (754, 27897), (986, 21333), (1094, 19227), (1131, 18598), (1326, 15863), (1479, 14222), (1641, 12818), (2262, 9299), (2958, 7111), (3282, 6409)]