20689746

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{2357}}^1$

素因数の和:2399

約数の個数: 64

約数和(自身を含む): 54328320

約数和(自身を除く): 33638574

約数列:

[1, 2, 3, 6, 7, 11, 14, 19, 21, 22, 33, 38, 42, 57, 66, 77, 114, 133, 154, 209, 231, 266, 399, 418, 462, 627, 798, 1254, 1463, 2357, 2926, 4389, 4714, 7071, 8778, 14142, 16499, 25927, 32998, 44783, 49497, 51854, 77781, 89566, 98994, 134349, 155562, 181489, 268698, 313481, 362978, 492613, 544467, 626962, 940443, 985226, 1088934, 1477839, 1880886, 2955678, 3448291, 6896582, 10344873, 20689746]

約数ペア:

[(1, 20689746), (2, 10344873), (3, 6896582), (6, 3448291), (7, 2955678), (11, 1880886), (14, 1477839), (19, 1088934), (21, 985226), (22, 940443), (33, 626962), (38, 544467), (42, 492613), (57, 362978), (66, 313481), (77, 268698), (114, 181489), (133, 155562), (154, 134349), (209, 98994), (231, 89566), (266, 77781), (399, 51854), (418, 49497), (462, 44783), (627, 32998), (798, 25927), (1254, 16499), (1463, 14142), (2357, 8778), (2926, 7071), (4389, 4714)]