21766380

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{499}}^1\times {\mathrm{727}}^1$

素因数の和:1238

約数の個数: 48

約数和(自身を含む): 61152000

約数和(自身を除く): 39385620

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 499, 727, 998, 1454, 1497, 1996, 2181, 2495, 2908, 2994, 3635, 4362, 4990, 5988, 7270, 7485, 8724, 9980, 10905, 14540, 14970, 21810, 29940, 43620, 362773, 725546, 1088319, 1451092, 1813865, 2176638, 3627730, 4353276, 5441595, 7255460, 10883190, 21766380]

約数ペア:

[(1, 21766380), (2, 10883190), (3, 7255460), (4, 5441595), (5, 4353276), (6, 3627730), (10, 2176638), (12, 1813865), (15, 1451092), (20, 1088319), (30, 725546), (60, 362773), (499, 43620), (727, 29940), (998, 21810), (1454, 14970), (1497, 14540), (1996, 10905), (2181, 9980), (2495, 8724), (2908, 7485), (2994, 7270), (3635, 5988), (4362, 4990)]