20984748

素因数分解:

$2^2\times 3^1\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{1283}}^1$

素因数の和:1366

約数の個数: 48

約数和(自身を含む): 51770880

約数和(自身を除く): 30786132

約数列:

[1, 2, 3, 4, 6, 12, 29, 47, 58, 87, 94, 116, 141, 174, 188, 282, 348, 564, 1283, 1363, 2566, 2726, 3849, 4089, 5132, 5452, 7698, 8178, 15396, 16356, 37207, 60301, 74414, 111621, 120602, 148828, 180903, 223242, 241204, 361806, 446484, 723612, 1748729, 3497458, 5246187, 6994916, 10492374, 20984748]

約数ペア:

[(1, 20984748), (2, 10492374), (3, 6994916), (4, 5246187), (6, 3497458), (12, 1748729), (29, 723612), (47, 446484), (58, 361806), (87, 241204), (94, 223242), (116, 180903), (141, 148828), (174, 120602), (188, 111621), (282, 74414), (348, 60301), (564, 37207), (1283, 16356), (1363, 15396), (2566, 8178), (2726, 7698), (3849, 5452), (4089, 5132)]