21385080

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{19801}}^1$

素因数の和:19821

約数の個数: 64

約数和(自身を含む): 71287200

約数和(自身を除く): 49902120

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, 19801, 39602, 59403, 79204, 99005, 118806, 158408, 178209, 198010, 237612, 297015, 356418, 396020, 475224, 534627, 594030, 712836, 792040, 891045, 1069254, 1188060, 1425672, 1782090, 2138508, 2376120, 2673135, 3564180, 4277016, 5346270, 7128360, 10692540, 21385080]

約数ペア:

[(1, 21385080), (2, 10692540), (3, 7128360), (4, 5346270), (5, 4277016), (6, 3564180), (8, 2673135), (9, 2376120), (10, 2138508), (12, 1782090), (15, 1425672), (18, 1188060), (20, 1069254), (24, 891045), (27, 792040), (30, 712836), (36, 594030), (40, 534627), (45, 475224), (54, 396020), (60, 356418), (72, 297015), (90, 237612), (108, 198010), (120, 178209), (135, 158408), (180, 118806), (216, 99005), (270, 79204), (360, 59403), (540, 39602), (1080, 19801)]