21767512

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{311}}^1\times {\mathrm{673}}^1$

素因数の和:1003

約数の個数: 32

約数和(自身を含む): 44160480

約数和(自身を除く): 22392968

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 311, 622, 673, 1244, 1346, 2488, 2692, 4043, 5384, 8086, 8749, 16172, 17498, 32344, 34996, 69992, 209303, 418606, 837212, 1674424, 2720939, 5441878, 10883756, 21767512]

約数ペア:

[(1, 21767512), (2, 10883756), (4, 5441878), (8, 2720939), (13, 1674424), (26, 837212), (52, 418606), (104, 209303), (311, 69992), (622, 34996), (673, 32344), (1244, 17498), (1346, 16172), (2488, 8749), (2692, 8086), (4043, 5384)]