21924609

素因数分解:

$3^1\times 7^2\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{139}}^1$

素因数の和:222

約数の個数: 48

約数和(自身を含む): 36388800

約数和(自身を除く): 14464191

約数列:

[1, 3, 7, 21, 29, 37, 49, 87, 111, 139, 147, 203, 259, 417, 609, 777, 973, 1073, 1421, 1813, 2919, 3219, 4031, 4263, 5143, 5439, 6811, 7511, 12093, 15429, 20433, 22533, 28217, 36001, 52577, 84651, 108003, 149147, 157731, 197519, 252007, 447441, 592557, 756021, 1044029, 3132087, 7308203, 21924609]

約数ペア:

[(1, 21924609), (3, 7308203), (7, 3132087), (21, 1044029), (29, 756021), (37, 592557), (49, 447441), (87, 252007), (111, 197519), (139, 157731), (147, 149147), (203, 108003), (259, 84651), (417, 52577), (609, 36001), (777, 28217), (973, 22533), (1073, 20433), (1421, 15429), (1813, 12093), (2919, 7511), (3219, 6811), (4031, 5439), (4263, 5143)]