21370291209

素因数分解:

$3^3\times {\mathrm{47}}^1\times {\mathrm{2897}}^1\times {\mathrm{5813}}^1$

素因数の和:8766

約数の個数: 32

約数和(自身を含む): 32350026240

約数和(自身を除く): 10979735031

約数列:

[1, 3, 9, 27, 47, 141, 423, 1269, 2897, 5813, 8691, 17439, 26073, 52317, 78219, 136159, 156951, 273211, 408477, 819633, 1225431, 2458899, 3676293, 7376697, 16840261, 50520783, 151562349, 454687047, 791492267, 2374476801, 7123430403, 21370291209]

約数ペア:

[(1, 21370291209), (3, 7123430403), (9, 2374476801), (27, 791492267), (47, 454687047), (141, 151562349), (423, 50520783), (1269, 16840261), (2897, 7376697), (5813, 3676293), (8691, 2458899), (17439, 1225431), (26073, 819633), (52317, 408477), (78219, 273211), (136159, 156951)]