21017340

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{38921}}^1$

素因数の和:38939

約数の個数: 48

約数和(自身を含む): 65388960

約数和(自身を除く): 44371620

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 90, 108, 135, 180, 270, 540, 38921, 77842, 116763, 155684, 194605, 233526, 350289, 389210, 467052, 583815, 700578, 778420, 1050867, 1167630, 1401156, 1751445, 2101734, 2335260, 3502890, 4203468, 5254335, 7005780, 10508670, 21017340]

約数ペア:

[(1, 21017340), (2, 10508670), (3, 7005780), (4, 5254335), (5, 4203468), (6, 3502890), (9, 2335260), (10, 2101734), (12, 1751445), (15, 1401156), (18, 1167630), (20, 1050867), (27, 778420), (30, 700578), (36, 583815), (45, 467052), (54, 389210), (60, 350289), (90, 233526), (108, 194605), (135, 155684), (180, 116763), (270, 77842), (540, 38921)]