21581802

素因数分解:

$2^1\times 3^5\times {\mathrm{11}}^2\times {\mathrm{367}}^1$

素因数の和:406

約数の個数: 72

約数和(自身を含む): 53446848

約数和(自身を除く): 31865046

約数列:

[1, 2, 3, 6, 9, 11, 18, 22, 27, 33, 54, 66, 81, 99, 121, 162, 198, 242, 243, 297, 363, 367, 486, 594, 726, 734, 891, 1089, 1101, 1782, 2178, 2202, 2673, 3267, 3303, 4037, 5346, 6534, 6606, 8074, 9801, 9909, 12111, 19602, 19818, 24222, 29403, 29727, 36333, 44407, 58806, 59454, 72666, 88814, 89181, 108999, 133221, 178362, 217998, 266442, 326997, 399663, 653994, 799326, 980991, 1198989, 1961982, 2397978, 3596967, 7193934, 10790901, 21581802]

約数ペア:

[(1, 21581802), (2, 10790901), (3, 7193934), (6, 3596967), (9, 2397978), (11, 1961982), (18, 1198989), (22, 980991), (27, 799326), (33, 653994), (54, 399663), (66, 326997), (81, 266442), (99, 217998), (121, 178362), (162, 133221), (198, 108999), (242, 89181), (243, 88814), (297, 72666), (363, 59454), (367, 58806), (486, 44407), (594, 36333), (726, 29727), (734, 29403), (891, 24222), (1089, 19818), (1101, 19602), (1782, 12111), (2178, 9909), (2202, 9801), (2673, 8074), (3267, 6606), (3303, 6534), (4037, 5346)]