21233880

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{19661}}^1$

素因数の和:19681

約数の個数: 64

約数和(自身を含む): 70783200

約数和(自身を除く): 49549320

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 40, 45, 54, 60, 72, 90, 108, 120, 135, 180, 216, 270, 360, 540, 1080, 19661, 39322, 58983, 78644, 98305, 117966, 157288, 176949, 196610, 235932, 294915, 353898, 393220, 471864, 530847, 589830, 707796, 786440, 884745, 1061694, 1179660, 1415592, 1769490, 2123388, 2359320, 2654235, 3538980, 4246776, 5308470, 7077960, 10616940, 21233880]

約数ペア:

[(1, 21233880), (2, 10616940), (3, 7077960), (4, 5308470), (5, 4246776), (6, 3538980), (8, 2654235), (9, 2359320), (10, 2123388), (12, 1769490), (15, 1415592), (18, 1179660), (20, 1061694), (24, 884745), (27, 786440), (30, 707796), (36, 589830), (40, 530847), (45, 471864), (54, 393220), (60, 353898), (72, 294915), (90, 235932), (108, 196610), (120, 176949), (135, 157288), (180, 117966), (216, 98305), (270, 78644), (360, 58983), (540, 39322), (1080, 19661)]