20905852

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{1471}}^1$

素因数の和:1522

約数の個数: 48

約数和(自身を含む): 44513280

約数和(自身を除く): 23607428

約数列:

[1, 2, 4, 11, 17, 19, 22, 34, 38, 44, 68, 76, 187, 209, 323, 374, 418, 646, 748, 836, 1292, 1471, 2942, 3553, 5884, 7106, 14212, 16181, 25007, 27949, 32362, 50014, 55898, 64724, 100028, 111796, 275077, 307439, 475133, 550154, 614878, 950266, 1100308, 1229756, 1900532, 5226463, 10452926, 20905852]

約数ペア:

[(1, 20905852), (2, 10452926), (4, 5226463), (11, 1900532), (17, 1229756), (19, 1100308), (22, 950266), (34, 614878), (38, 550154), (44, 475133), (68, 307439), (76, 275077), (187, 111796), (209, 100028), (323, 64724), (374, 55898), (418, 50014), (646, 32362), (748, 27949), (836, 25007), (1292, 16181), (1471, 14212), (2942, 7106), (3553, 5884)]