21061620

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{13001}}^1$

素因数の和:13022

約数の個数: 60

約数和(自身を含む): 66076164

約数和(自身を除く): 45014544

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 81, 90, 108, 135, 162, 180, 270, 324, 405, 540, 810, 1620, 13001, 26002, 39003, 52004, 65005, 78006, 117009, 130010, 156012, 195015, 234018, 260020, 351027, 390030, 468036, 585045, 702054, 780060, 1053081, 1170090, 1404108, 1755135, 2106162, 2340180, 3510270, 4212324, 5265405, 7020540, 10530810, 21061620]

約数ペア:

[(1, 21061620), (2, 10530810), (3, 7020540), (4, 5265405), (5, 4212324), (6, 3510270), (9, 2340180), (10, 2106162), (12, 1755135), (15, 1404108), (18, 1170090), (20, 1053081), (27, 780060), (30, 702054), (36, 585045), (45, 468036), (54, 390030), (60, 351027), (81, 260020), (90, 234018), (108, 195015), (135, 156012), (162, 130010), (180, 117009), (270, 78006), (324, 65005), (405, 52004), (540, 39003), (810, 26002), (1620, 13001)]