18847312

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{173}}^1\times {\mathrm{619}}^1$

素因数の和:811

約数の個数: 40

約数和(自身を含む): 40131360

約数和(自身を除く): 21284048

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 173, 176, 346, 619, 692, 1238, 1384, 1903, 2476, 2768, 3806, 4952, 6809, 7612, 9904, 13618, 15224, 27236, 30448, 54472, 107087, 108944, 214174, 428348, 856696, 1177957, 1713392, 2355914, 4711828, 9423656, 18847312]

約数ペア:

[(1, 18847312), (2, 9423656), (4, 4711828), (8, 2355914), (11, 1713392), (16, 1177957), (22, 856696), (44, 428348), (88, 214174), (173, 108944), (176, 107087), (346, 54472), (619, 30448), (692, 27236), (1238, 15224), (1384, 13618), (1903, 9904), (2476, 7612), (2768, 6809), (3806, 4952)]