21806760

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{7901}}^1$

素因数の和:7938

約数の個数: 64

約数和(自身を含む): 68273280

約数和(自身を除く): 46466520

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 23, 24, 30, 40, 46, 60, 69, 92, 115, 120, 138, 184, 230, 276, 345, 460, 552, 690, 920, 1380, 2760, 7901, 15802, 23703, 31604, 39505, 47406, 63208, 79010, 94812, 118515, 158020, 181723, 189624, 237030, 316040, 363446, 474060, 545169, 726892, 908615, 948120, 1090338, 1453784, 1817230, 2180676, 2725845, 3634460, 4361352, 5451690, 7268920, 10903380, 21806760]

約数ペア:

[(1, 21806760), (2, 10903380), (3, 7268920), (4, 5451690), (5, 4361352), (6, 3634460), (8, 2725845), (10, 2180676), (12, 1817230), (15, 1453784), (20, 1090338), (23, 948120), (24, 908615), (30, 726892), (40, 545169), (46, 474060), (60, 363446), (69, 316040), (92, 237030), (115, 189624), (120, 181723), (138, 158020), (184, 118515), (230, 94812), (276, 79010), (345, 63208), (460, 47406), (552, 39505), (690, 31604), (920, 23703), (1380, 15802), (2760, 7901)]