28139055

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{7243}}^1$

素因数の和:7295

約数の個数: 32

約数和(自身を含む): 52852224

約数和(自身を除く): 24713169

約数列:

[1, 3, 5, 7, 15, 21, 35, 37, 105, 111, 185, 259, 555, 777, 1295, 3885, 7243, 21729, 36215, 50701, 108645, 152103, 253505, 267991, 760515, 803973, 1339955, 1875937, 4019865, 5627811, 9379685, 28139055]

約数ペア:

[(1, 28139055), (3, 9379685), (5, 5627811), (7, 4019865), (15, 1875937), (21, 1339955), (35, 803973), (37, 760515), (105, 267991), (111, 253505), (185, 152103), (259, 108645), (555, 50701), (777, 36215), (1295, 21729), (3885, 7243)]