21419475

素因数分解:

$3^1\times 5^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{3709}}^1$

素因数の和:3740

約数の個数: 48

約数和(自身を含む): 44163840

約数和(自身を除く): 22744365

約数列:

[1, 3, 5, 7, 11, 15, 21, 25, 33, 35, 55, 75, 77, 105, 165, 175, 231, 275, 385, 525, 825, 1155, 1925, 3709, 5775, 11127, 18545, 25963, 40799, 55635, 77889, 92725, 122397, 129815, 203995, 278175, 285593, 389445, 611985, 649075, 856779, 1019975, 1427965, 1947225, 3059925, 4283895, 7139825, 21419475]

約数ペア:

[(1, 21419475), (3, 7139825), (5, 4283895), (7, 3059925), (11, 1947225), (15, 1427965), (21, 1019975), (25, 856779), (33, 649075), (35, 611985), (55, 389445), (75, 285593), (77, 278175), (105, 203995), (165, 129815), (175, 122397), (231, 92725), (275, 77889), (385, 55635), (525, 40799), (825, 25963), (1155, 18545), (1925, 11127), (3709, 5775)]