21684360

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{137}}^1\times {\mathrm{1319}}^1$

素因数の和:1470

約数の個数: 64

約数和(自身を含む): 65577600

約数和(自身を除く): 43893240

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 137, 274, 411, 548, 685, 822, 1096, 1319, 1370, 1644, 2055, 2638, 2740, 3288, 3957, 4110, 5276, 5480, 6595, 7914, 8220, 10552, 13190, 15828, 16440, 19785, 26380, 31656, 39570, 52760, 79140, 158280, 180703, 361406, 542109, 722812, 903515, 1084218, 1445624, 1807030, 2168436, 2710545, 3614060, 4336872, 5421090, 7228120, 10842180, 21684360]

約数ペア:

[(1, 21684360), (2, 10842180), (3, 7228120), (4, 5421090), (5, 4336872), (6, 3614060), (8, 2710545), (10, 2168436), (12, 1807030), (15, 1445624), (20, 1084218), (24, 903515), (30, 722812), (40, 542109), (60, 361406), (120, 180703), (137, 158280), (274, 79140), (411, 52760), (548, 39570), (685, 31656), (822, 26380), (1096, 19785), (1319, 16440), (1370, 15828), (1644, 13190), (2055, 10552), (2638, 8220), (2740, 7914), (3288, 6595), (3957, 5480), (4110, 5276)]