16906875

素因数分解:

$3^1\times 5^4\times {\mathrm{71}}^1\times {\mathrm{127}}^1$

素因数の和:221

約数の個数: 40

約数和(自身を含む): 28790784

約数和(自身を除く): 11883909

約数列:

[1, 3, 5, 15, 25, 71, 75, 125, 127, 213, 355, 375, 381, 625, 635, 1065, 1775, 1875, 1905, 3175, 5325, 8875, 9017, 9525, 15875, 26625, 27051, 44375, 45085, 47625, 79375, 133125, 135255, 225425, 238125, 676275, 1127125, 3381375, 5635625, 16906875]

約数ペア:

[(1, 16906875), (3, 5635625), (5, 3381375), (15, 1127125), (25, 676275), (71, 238125), (75, 225425), (125, 135255), (127, 133125), (213, 79375), (355, 47625), (375, 45085), (381, 44375), (625, 27051), (635, 26625), (1065, 15875), (1775, 9525), (1875, 9017), (1905, 8875), (3175, 5325)]