21144684

素因数分解:

$2^2\times 3^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{3907}}^1$

素因数の和:3966

約数の個数: 48

約数和(自身を含む): 55149696

約数和(自身を除く): 34005012

約数列:

[1, 2, 3, 4, 6, 11, 12, 22, 33, 41, 44, 66, 82, 123, 132, 164, 246, 451, 492, 902, 1353, 1804, 2706, 3907, 5412, 7814, 11721, 15628, 23442, 42977, 46884, 85954, 128931, 160187, 171908, 257862, 320374, 480561, 515724, 640748, 961122, 1762057, 1922244, 3524114, 5286171, 7048228, 10572342, 21144684]

約数ペア:

[(1, 21144684), (2, 10572342), (3, 7048228), (4, 5286171), (6, 3524114), (11, 1922244), (12, 1762057), (22, 961122), (33, 640748), (41, 515724), (44, 480561), (66, 320374), (82, 257862), (123, 171908), (132, 160187), (164, 128931), (246, 85954), (451, 46884), (492, 42977), (902, 23442), (1353, 15628), (1804, 11721), (2706, 7814), (3907, 5412)]