21310416

素因数分解:

$2^4\times 3^2\times {\mathrm{83}}^1\times {\mathrm{1783}}^1$

素因数の和:1880

約数の個数: 60

約数和(自身を含む): 60391968

約数和(自身を除く): 39081552

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 48, 72, 83, 144, 166, 249, 332, 498, 664, 747, 996, 1328, 1494, 1783, 1992, 2988, 3566, 3984, 5349, 5976, 7132, 10698, 11952, 14264, 16047, 21396, 28528, 32094, 42792, 64188, 85584, 128376, 147989, 256752, 295978, 443967, 591956, 887934, 1183912, 1331901, 1775868, 2367824, 2663802, 3551736, 5327604, 7103472, 10655208, 21310416]

約数ペア:

[(1, 21310416), (2, 10655208), (3, 7103472), (4, 5327604), (6, 3551736), (8, 2663802), (9, 2367824), (12, 1775868), (16, 1331901), (18, 1183912), (24, 887934), (36, 591956), (48, 443967), (72, 295978), (83, 256752), (144, 147989), (166, 128376), (249, 85584), (332, 64188), (498, 42792), (664, 32094), (747, 28528), (996, 21396), (1328, 16047), (1494, 14264), (1783, 11952), (1992, 10698), (2988, 7132), (3566, 5976), (3984, 5349)]