21181872

素因数分解:

$2^4\times 3^1\times {\mathrm{607}}^1\times {\mathrm{727}}^1$

素因数の和:1345

約数の個数: 40

約数和(自身を含む): 54885376

約数和(自身を除く): 33703504

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 48, 607, 727, 1214, 1454, 1821, 2181, 2428, 2908, 3642, 4362, 4856, 5816, 7284, 8724, 9712, 11632, 14568, 17448, 29136, 34896, 441289, 882578, 1323867, 1765156, 2647734, 3530312, 5295468, 7060624, 10590936, 21181872]

約数ペア:

[(1, 21181872), (2, 10590936), (3, 7060624), (4, 5295468), (6, 3530312), (8, 2647734), (12, 1765156), (16, 1323867), (24, 882578), (48, 441289), (607, 34896), (727, 29136), (1214, 17448), (1454, 14568), (1821, 11632), (2181, 9712), (2428, 8724), (2908, 7284), (3642, 5816), (4362, 4856)]