21971752

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{773}}^1$

素因数の和:826

約数の個数: 64

約数和(自身を含む): 50155200

約数和(自身を除く): 28183448

約数列:

[1, 2, 4, 8, 11, 17, 19, 22, 34, 38, 44, 68, 76, 88, 136, 152, 187, 209, 323, 374, 418, 646, 748, 773, 836, 1292, 1496, 1546, 1672, 2584, 3092, 3553, 6184, 7106, 8503, 13141, 14212, 14687, 17006, 26282, 28424, 29374, 34012, 52564, 58748, 68024, 105128, 117496, 144551, 161557, 249679, 289102, 323114, 499358, 578204, 646228, 998716, 1156408, 1292456, 1997432, 2746469, 5492938, 10985876, 21971752]

約数ペア:

[(1, 21971752), (2, 10985876), (4, 5492938), (8, 2746469), (11, 1997432), (17, 1292456), (19, 1156408), (22, 998716), (34, 646228), (38, 578204), (44, 499358), (68, 323114), (76, 289102), (88, 249679), (136, 161557), (152, 144551), (187, 117496), (209, 105128), (323, 68024), (374, 58748), (418, 52564), (646, 34012), (748, 29374), (773, 28424), (836, 26282), (1292, 17006), (1496, 14687), (1546, 14212), (1672, 13141), (2584, 8503), (3092, 7106), (3553, 6184)]