21062768

素因数分解:

$2^4\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{757}}^1$

素因数の和:849

約数の個数: 40

約数和(自身を含む): 42860352

約数和(自身を除く): 21797584

約数列:

[1, 2, 4, 8, 16, 37, 47, 74, 94, 148, 188, 296, 376, 592, 752, 757, 1514, 1739, 3028, 3478, 6056, 6956, 12112, 13912, 27824, 28009, 35579, 56018, 71158, 112036, 142316, 224072, 284632, 448144, 569264, 1316423, 2632846, 5265692, 10531384, 21062768]

約数ペア:

[(1, 21062768), (2, 10531384), (4, 5265692), (8, 2632846), (16, 1316423), (37, 569264), (47, 448144), (74, 284632), (94, 224072), (148, 142316), (188, 112036), (296, 71158), (376, 56018), (592, 35579), (752, 28009), (757, 27824), (1514, 13912), (1739, 12112), (3028, 6956), (3478, 6056)]