20924964

素因数分解:

$2^2\times 3^2\times {\mathrm{47}}^1\times {\mathrm{83}}^1\times {\mathrm{149}}^1$

素因数の和:289

約数の個数: 72

約数和(自身を含む): 55036800

約数和(自身を除く): 34111836

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 47, 83, 94, 141, 149, 166, 188, 249, 282, 298, 332, 423, 447, 498, 564, 596, 747, 846, 894, 996, 1341, 1494, 1692, 1788, 2682, 2988, 3901, 5364, 7003, 7802, 11703, 12367, 14006, 15604, 21009, 23406, 24734, 28012, 35109, 37101, 42018, 46812, 49468, 63027, 70218, 74202, 84036, 111303, 126054, 140436, 148404, 222606, 252108, 445212, 581249, 1162498, 1743747, 2324996, 3487494, 5231241, 6974988, 10462482, 20924964]

約数ペア:

[(1, 20924964), (2, 10462482), (3, 6974988), (4, 5231241), (6, 3487494), (9, 2324996), (12, 1743747), (18, 1162498), (36, 581249), (47, 445212), (83, 252108), (94, 222606), (141, 148404), (149, 140436), (166, 126054), (188, 111303), (249, 84036), (282, 74202), (298, 70218), (332, 63027), (423, 49468), (447, 46812), (498, 42018), (564, 37101), (596, 35109), (747, 28012), (846, 24734), (894, 23406), (996, 21009), (1341, 15604), (1494, 14006), (1692, 12367), (1788, 11703), (2682, 7802), (2988, 7003), (3901, 5364)]