21284328

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{68219}}^1$

素因数の和:68241

約数の個数: 32

約数和(自身を含む): 57304800

約数和(自身を除く): 36020472

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 24, 26, 39, 52, 78, 104, 156, 312, 68219, 136438, 204657, 272876, 409314, 545752, 818628, 886847, 1637256, 1773694, 2660541, 3547388, 5321082, 7094776, 10642164, 21284328]

約数ペア:

[(1, 21284328), (2, 10642164), (3, 7094776), (4, 5321082), (6, 3547388), (8, 2660541), (12, 1773694), (13, 1637256), (24, 886847), (26, 818628), (39, 545752), (52, 409314), (78, 272876), (104, 204657), (156, 136438), (312, 68219)]