21082875

素因数分解:

$3^1\times 5^3\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{269}}^1$

素因数の和:317

約数の個数: 64

約数和(自身を含む): 40435200

約数和(自身を除く): 19352325

約数列:

[1, 3, 5, 11, 15, 19, 25, 33, 55, 57, 75, 95, 125, 165, 209, 269, 275, 285, 375, 475, 627, 807, 825, 1045, 1345, 1375, 1425, 2375, 2959, 3135, 4035, 4125, 5111, 5225, 6725, 7125, 8877, 14795, 15333, 15675, 20175, 25555, 26125, 33625, 44385, 56221, 73975, 76665, 78375, 100875, 127775, 168663, 221925, 281105, 369875, 383325, 638875, 843315, 1109625, 1405525, 1916625, 4216575, 7027625, 21082875]

約数ペア:

[(1, 21082875), (3, 7027625), (5, 4216575), (11, 1916625), (15, 1405525), (19, 1109625), (25, 843315), (33, 638875), (55, 383325), (57, 369875), (75, 281105), (95, 221925), (125, 168663), (165, 127775), (209, 100875), (269, 78375), (275, 76665), (285, 73975), (375, 56221), (475, 44385), (627, 33625), (807, 26125), (825, 25555), (1045, 20175), (1345, 15675), (1375, 15333), (1425, 14795), (2375, 8877), (2959, 7125), (3135, 6725), (4035, 5225), (4125, 5111)]