21497610

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{401}}^1\times {\mathrm{1787}}^1$

素因数の和:2198

約数の個数: 32

約数和(自身を含む): 51751872

約数和(自身を除く): 30254262

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 401, 802, 1203, 1787, 2005, 2406, 3574, 4010, 5361, 6015, 8935, 10722, 12030, 17870, 26805, 53610, 716587, 1433174, 2149761, 3582935, 4299522, 7165870, 10748805, 21497610]

約数ペア:

[(1, 21497610), (2, 10748805), (3, 7165870), (5, 4299522), (6, 3582935), (10, 2149761), (15, 1433174), (30, 716587), (401, 53610), (802, 26805), (1203, 17870), (1787, 12030), (2005, 10722), (2406, 8935), (3574, 6015), (4010, 5361)]