19799895

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{1979}}^1$

素因数の和:2039

約数の個数: 32

約数和(自身を含む): 34214400

約数和(自身を除く): 14414505

約数列:

[1, 3, 5, 15, 23, 29, 69, 87, 115, 145, 345, 435, 667, 1979, 2001, 3335, 5937, 9895, 10005, 29685, 45517, 57391, 136551, 172173, 227585, 286955, 682755, 860865, 1319993, 3959979, 6599965, 19799895]

約数ペア:

[(1, 19799895), (3, 6599965), (5, 3959979), (15, 1319993), (23, 860865), (29, 682755), (69, 286955), (87, 227585), (115, 172173), (145, 136551), (345, 57391), (435, 45517), (667, 29685), (1979, 10005), (2001, 9895), (3335, 5937)]