21958480

素因数分解:

$2^4\times 5^1\times {\mathrm{83}}^1\times {\mathrm{3307}}^1$

素因数の和:3403

約数の個数: 40

約数和(自身を含む): 51684192

約数和(自身を除く): 29725712

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 83, 166, 332, 415, 664, 830, 1328, 1660, 3307, 3320, 6614, 6640, 13228, 16535, 26456, 33070, 52912, 66140, 132280, 264560, 274481, 548962, 1097924, 1372405, 2195848, 2744810, 4391696, 5489620, 10979240, 21958480]

約数ペア:

[(1, 21958480), (2, 10979240), (4, 5489620), (5, 4391696), (8, 2744810), (10, 2195848), (16, 1372405), (20, 1097924), (40, 548962), (80, 274481), (83, 264560), (166, 132280), (332, 66140), (415, 52912), (664, 33070), (830, 26456), (1328, 16535), (1660, 13228), (3307, 6640), (3320, 6614)]