21726054

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{269}}^1\times {\mathrm{641}}^1$

素因数の和:925

約数の個数: 48

約数和(自身を含む): 54082080

約数和(自身を除く): 32356026

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 126, 269, 538, 641, 807, 1282, 1614, 1883, 1923, 2421, 3766, 3846, 4487, 4842, 5649, 5769, 8974, 11298, 11538, 13461, 16947, 26922, 33894, 40383, 80766, 172429, 344858, 517287, 1034574, 1207003, 1551861, 2414006, 3103722, 3621009, 7242018, 10863027, 21726054]

約数ペア:

[(1, 21726054), (2, 10863027), (3, 7242018), (6, 3621009), (7, 3103722), (9, 2414006), (14, 1551861), (18, 1207003), (21, 1034574), (42, 517287), (63, 344858), (126, 172429), (269, 80766), (538, 40383), (641, 33894), (807, 26922), (1282, 16947), (1614, 13461), (1883, 11538), (1923, 11298), (2421, 8974), (3766, 5769), (3846, 5649), (4487, 4842)]