21380458947

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{757}}^1\times {\mathrm{8123}}^1$

素因数の和:8963

約数の個数: 32

約数和(自身を含む): 30543640320

約数和(自身を除く): 9163181373

約数列:

[1, 3, 19, 57, 61, 183, 757, 1159, 2271, 3477, 8123, 14383, 24369, 43149, 46177, 138531, 154337, 463011, 495503, 877363, 1486509, 2632089, 6149111, 9414557, 18447333, 28243671, 116833109, 350499327, 375095771, 1125287313, 7126819649, 21380458947]

約数ペア:

[(1, 21380458947), (3, 7126819649), (19, 1125287313), (57, 375095771), (61, 350499327), (183, 116833109), (757, 28243671), (1159, 18447333), (2271, 9414557), (3477, 6149111), (8123, 2632089), (14383, 1486509), (24369, 877363), (43149, 495503), (46177, 463011), (138531, 154337)]