28045815

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{7219}}^1$

素因数の和:7271

約数の個数: 32

約数和(自身を含む): 52677120

約数和(自身を除く): 24631305

約数列:

[1, 3, 5, 7, 15, 21, 35, 37, 105, 111, 185, 259, 555, 777, 1295, 3885, 7219, 21657, 36095, 50533, 108285, 151599, 252665, 267103, 757995, 801309, 1335515, 1869721, 4006545, 5609163, 9348605, 28045815]

約数ペア:

[(1, 28045815), (3, 9348605), (5, 5609163), (7, 4006545), (15, 1869721), (21, 1335515), (35, 801309), (37, 757995), (105, 267103), (111, 252665), (185, 151599), (259, 108285), (555, 50533), (777, 36095), (1295, 21657), (3885, 7219)]