18914025

素因数分解:

$3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{1021}}^1$

素因数の和:1066

約数の個数: 48

約数和(自身を含む): 35483840

約数和(自身を除く): 16569815

約数列:

[1, 3, 5, 13, 15, 19, 25, 39, 57, 65, 75, 95, 195, 247, 285, 325, 475, 741, 975, 1021, 1235, 1425, 3063, 3705, 5105, 6175, 13273, 15315, 18525, 19399, 25525, 39819, 58197, 66365, 76575, 96995, 199095, 252187, 290985, 331825, 484975, 756561, 995475, 1260935, 1454925, 3782805, 6304675, 18914025]

約数ペア:

[(1, 18914025), (3, 6304675), (5, 3782805), (13, 1454925), (15, 1260935), (19, 995475), (25, 756561), (39, 484975), (57, 331825), (65, 290985), (75, 252187), (95, 199095), (195, 96995), (247, 76575), (285, 66365), (325, 58197), (475, 39819), (741, 25525), (975, 19399), (1021, 18525), (1235, 15315), (1425, 13273), (3063, 6175), (3705, 5105)]