321975

素因数分解:

$3^5\times 5^2\times {\mathrm{53}}^1$

素因数の和:78

約数の個数: 36

約数和(自身を含む): 609336

約数和(自身を除く): 287361

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 53, 75, 81, 135, 159, 225, 243, 265, 405, 477, 675, 795, 1215, 1325, 1431, 2025, 2385, 3975, 4293, 6075, 7155, 11925, 12879, 21465, 35775, 64395, 107325, 321975]

約数ペア:

[(1, 321975), (3, 107325), (5, 64395), (9, 35775), (15, 21465), (25, 12879), (27, 11925), (45, 7155), (53, 6075), (75, 4293), (81, 3975), (135, 2385), (159, 2025), (225, 1431), (243, 1325), (265, 1215), (405, 795), (477, 675)]