21815898

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{389}}^1\times {\mathrm{719}}^1$

素因数の和:1126

約数の個数: 32

約数和(自身を含む): 47174400

約数和(自身を除く): 25358502

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 389, 719, 778, 1167, 1438, 2157, 2334, 4314, 5057, 9347, 10114, 15171, 18694, 28041, 30342, 56082, 279691, 559382, 839073, 1678146, 3635983, 7271966, 10907949, 21815898]

約数ペア:

[(1, 21815898), (2, 10907949), (3, 7271966), (6, 3635983), (13, 1678146), (26, 839073), (39, 559382), (78, 279691), (389, 56082), (719, 30342), (778, 28041), (1167, 18694), (1438, 15171), (2157, 10114), (2334, 9347), (4314, 5057)]