21508920

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{59747}}^1$

素因数の和:59764

約数の個数: 48

約数和(自身を含む): 69905160

約数和(自身を除く): 48396240

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 90, 120, 180, 360, 59747, 119494, 179241, 238988, 298735, 358482, 477976, 537723, 597470, 716964, 896205, 1075446, 1194940, 1433928, 1792410, 2150892, 2389880, 2688615, 3584820, 4301784, 5377230, 7169640, 10754460, 21508920]

約数ペア:

[(1, 21508920), (2, 10754460), (3, 7169640), (4, 5377230), (5, 4301784), (6, 3584820), (8, 2688615), (9, 2389880), (10, 2150892), (12, 1792410), (15, 1433928), (18, 1194940), (20, 1075446), (24, 896205), (30, 716964), (36, 597470), (40, 537723), (45, 477976), (60, 358482), (72, 298735), (90, 238988), (120, 179241), (180, 119494), (360, 59747)]