19420778

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{599}}^1$

素因数の和:686

約数の個数: 32

約数和(自身を含む): 33264000

約数和(自身を除く): 13843222

約数列:

[1, 2, 13, 26, 29, 43, 58, 86, 377, 559, 599, 754, 1118, 1198, 1247, 2494, 7787, 15574, 16211, 17371, 25757, 32422, 34742, 51514, 225823, 334841, 451646, 669682, 746953, 1493906, 9710389, 19420778]

約数ペア:

[(1, 19420778), (2, 9710389), (13, 1493906), (26, 746953), (29, 669682), (43, 451646), (58, 334841), (86, 225823), (377, 51514), (559, 34742), (599, 32422), (754, 25757), (1118, 17371), (1198, 16211), (1247, 15574), (2494, 7787)]