21591528

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{128521}}^1$

素因数の和:128537

約数の個数: 32

約数和(自身を含む): 61690560

約数和(自身を除く): 40099032

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 42, 56, 84, 168, 128521, 257042, 385563, 514084, 771126, 899647, 1028168, 1542252, 1799294, 2698941, 3084504, 3598588, 5397882, 7197176, 10795764, 21591528]

約数ペア:

[(1, 21591528), (2, 10795764), (3, 7197176), (4, 5397882), (6, 3598588), (7, 3084504), (8, 2698941), (12, 1799294), (14, 1542252), (21, 1028168), (24, 899647), (28, 771126), (42, 514084), (56, 385563), (84, 257042), (168, 128521)]