21207246

素因数分解:

$2^1\times 3^1\times {\mathrm{47}}^1\times {\mathrm{157}}^1\times {\mathrm{479}}^1$

素因数の和:688

約数の個数: 32

約数和(自身を含む): 43683840

約数和(自身を除く): 22476594

約数列:

[1, 2, 3, 6, 47, 94, 141, 157, 282, 314, 471, 479, 942, 958, 1437, 2874, 7379, 14758, 22137, 22513, 44274, 45026, 67539, 75203, 135078, 150406, 225609, 451218, 3534541, 7069082, 10603623, 21207246]

約数ペア:

[(1, 21207246), (2, 10603623), (3, 7069082), (6, 3534541), (47, 451218), (94, 225609), (141, 150406), (157, 135078), (282, 75203), (314, 67539), (471, 45026), (479, 44274), (942, 22513), (958, 22137), (1437, 14758), (2874, 7379)]