21143408

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{9241}}^1$

素因数の和:9273

約数の個数: 40

約数和(自身を含む): 48132336

約数和(自身を除く): 26988928

約数列:

[1, 2, 4, 8, 11, 13, 16, 22, 26, 44, 52, 88, 104, 143, 176, 208, 286, 572, 1144, 2288, 9241, 18482, 36964, 73928, 101651, 120133, 147856, 203302, 240266, 406604, 480532, 813208, 961064, 1321463, 1626416, 1922128, 2642926, 5285852, 10571704, 21143408]

約数ペア:

[(1, 21143408), (2, 10571704), (4, 5285852), (8, 2642926), (11, 1922128), (13, 1626416), (16, 1321463), (22, 961064), (26, 813208), (44, 480532), (52, 406604), (88, 240266), (104, 203302), (143, 147856), (176, 120133), (208, 101651), (286, 73928), (572, 36964), (1144, 18482), (2288, 9241)]