19855875

素因数分解:

$3^1\times 5^3\times {\mathrm{13}}^1\times {\mathrm{4073}}^1$

素因数の和:4104

約数の個数: 32

約数和(自身を含む): 35590464

約数和(自身を除く): 15734589

約数列:

[1, 3, 5, 13, 15, 25, 39, 65, 75, 125, 195, 325, 375, 975, 1625, 4073, 4875, 12219, 20365, 52949, 61095, 101825, 158847, 264745, 305475, 509125, 794235, 1323725, 1527375, 3971175, 6618625, 19855875]

約数ペア:

[(1, 19855875), (3, 6618625), (5, 3971175), (13, 1527375), (15, 1323725), (25, 794235), (39, 509125), (65, 305475), (75, 264745), (125, 158847), (195, 101825), (325, 61095), (375, 52949), (975, 20365), (1625, 12219), (4073, 4875)]