19944756

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{2243}}^1$

素因数の和:2285

約数の個数: 72

約数和(自身を含む): 57177120

約数和(自身を除く): 37232364

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 19, 26, 36, 38, 39, 52, 57, 76, 78, 114, 117, 156, 171, 228, 234, 247, 342, 468, 494, 684, 741, 988, 1482, 2223, 2243, 2964, 4446, 4486, 6729, 8892, 8972, 13458, 20187, 26916, 29159, 40374, 42617, 58318, 80748, 85234, 87477, 116636, 127851, 170468, 174954, 255702, 262431, 349908, 383553, 511404, 524862, 554021, 767106, 1049724, 1108042, 1534212, 1662063, 2216084, 3324126, 4986189, 6648252, 9972378, 19944756]

約数ペア:

[(1, 19944756), (2, 9972378), (3, 6648252), (4, 4986189), (6, 3324126), (9, 2216084), (12, 1662063), (13, 1534212), (18, 1108042), (19, 1049724), (26, 767106), (36, 554021), (38, 524862), (39, 511404), (52, 383553), (57, 349908), (76, 262431), (78, 255702), (114, 174954), (117, 170468), (156, 127851), (171, 116636), (228, 87477), (234, 85234), (247, 80748), (342, 58318), (468, 42617), (494, 40374), (684, 29159), (741, 26916), (988, 20187), (1482, 13458), (2223, 8972), (2243, 8892), (2964, 6729), (4446, 4486)]