21954540

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{239}}^1\times {\mathrm{1531}}^1$

素因数の和:1782

約数の個数: 48

約数和(自身を含む): 61770240

約数和(自身を除く): 39815700

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 239, 478, 717, 956, 1195, 1434, 1531, 2390, 2868, 3062, 3585, 4593, 4780, 6124, 7170, 7655, 9186, 14340, 15310, 18372, 22965, 30620, 45930, 91860, 365909, 731818, 1097727, 1463636, 1829545, 2195454, 3659090, 4390908, 5488635, 7318180, 10977270, 21954540]

約数ペア:

[(1, 21954540), (2, 10977270), (3, 7318180), (4, 5488635), (5, 4390908), (6, 3659090), (10, 2195454), (12, 1829545), (15, 1463636), (20, 1097727), (30, 731818), (60, 365909), (239, 91860), (478, 45930), (717, 30620), (956, 22965), (1195, 18372), (1434, 15310), (1531, 14340), (2390, 9186), (2868, 7655), (3062, 7170), (3585, 6124), (4593, 4780)]