21691252

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{617}}^1$

素因数の和:696

約数の個数: 48

約数和(自身を含む): 44851968

約数和(自身を除く): 23160716

約数列:

[1, 2, 4, 11, 17, 22, 34, 44, 47, 68, 94, 187, 188, 374, 517, 617, 748, 799, 1034, 1234, 1598, 2068, 2468, 3196, 6787, 8789, 10489, 13574, 17578, 20978, 27148, 28999, 35156, 41956, 57998, 115379, 115996, 230758, 318989, 461516, 492983, 637978, 985966, 1275956, 1971932, 5422813, 10845626, 21691252]

約数ペア:

[(1, 21691252), (2, 10845626), (4, 5422813), (11, 1971932), (17, 1275956), (22, 985966), (34, 637978), (44, 492983), (47, 461516), (68, 318989), (94, 230758), (187, 115996), (188, 115379), (374, 57998), (517, 41956), (617, 35156), (748, 28999), (799, 27148), (1034, 20978), (1234, 17578), (1598, 13574), (2068, 10489), (2468, 8789), (3196, 6787)]