28280707

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{101}}^1\times {\mathrm{181}}^1$

素因数の和:319

約数の個数: 32

約数和(自身を含む): 37425024

約数和(自身を除く): 9144317

約数列:

[1, 7, 13, 17, 91, 101, 119, 181, 221, 707, 1267, 1313, 1547, 1717, 2353, 3077, 9191, 12019, 16471, 18281, 21539, 22321, 40001, 127967, 156247, 237653, 280007, 310777, 1663571, 2175439, 4040101, 28280707]

約数ペア:

[(1, 28280707), (7, 4040101), (13, 2175439), (17, 1663571), (91, 310777), (101, 280007), (119, 237653), (181, 156247), (221, 127967), (707, 40001), (1267, 22321), (1313, 21539), (1547, 18281), (1717, 16471), (2353, 12019), (3077, 9191)]