19992375

素因数分解:

$3^2\times 5^3\times {\mathrm{13}}^1\times {\mathrm{1367}}^1$

素因数の和:1401

約数の個数: 48

約数和(自身を含む): 38840256

約数和(自身を除く): 18847881

約数列:

[1, 3, 5, 9, 13, 15, 25, 39, 45, 65, 75, 117, 125, 195, 225, 325, 375, 585, 975, 1125, 1367, 1625, 2925, 4101, 4875, 6835, 12303, 14625, 17771, 20505, 34175, 53313, 61515, 88855, 102525, 159939, 170875, 266565, 307575, 444275, 512625, 799695, 1332825, 1537875, 2221375, 3998475, 6664125, 19992375]

約数ペア:

[(1, 19992375), (3, 6664125), (5, 3998475), (9, 2221375), (13, 1537875), (15, 1332825), (25, 799695), (39, 512625), (45, 444275), (65, 307575), (75, 266565), (117, 170875), (125, 159939), (195, 102525), (225, 88855), (325, 61515), (375, 53313), (585, 34175), (975, 20505), (1125, 17771), (1367, 14625), (1625, 12303), (2925, 6835), (4101, 4875)]