28881153

素因数分解:

$3^2\times 7^1\times {\mathrm{617}}^1\times {\mathrm{743}}^1$

素因数の和:1373

約数の個数: 24

約数和(自身を含む): 47818368

約数和(自身を除く): 18937215

約数列:

[1, 3, 7, 9, 21, 63, 617, 743, 1851, 2229, 4319, 5201, 5553, 6687, 12957, 15603, 38871, 46809, 458431, 1375293, 3209017, 4125879, 9627051, 28881153]

約数ペア:

[(1, 28881153), (3, 9627051), (7, 4125879), (9, 3209017), (21, 1375293), (63, 458431), (617, 46809), (743, 38871), (1851, 15603), (2229, 12957), (4319, 6687), (5201, 5553)]