21427944

素因数分解:

$2^3\times 3^1\times {\mathrm{31}}^1\times {\mathrm{83}}^1\times {\mathrm{347}}^1$

素因数の和:470

約数の個数: 64

約数和(自身を含む): 56125440

約数和(自身を除く): 34697496

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 31, 62, 83, 93, 124, 166, 186, 248, 249, 332, 347, 372, 498, 664, 694, 744, 996, 1041, 1388, 1992, 2082, 2573, 2776, 4164, 5146, 7719, 8328, 10292, 10757, 15438, 20584, 21514, 28801, 30876, 32271, 43028, 57602, 61752, 64542, 86056, 86403, 115204, 129084, 172806, 230408, 258168, 345612, 691224, 892831, 1785662, 2678493, 3571324, 5356986, 7142648, 10713972, 21427944]

約数ペア:

[(1, 21427944), (2, 10713972), (3, 7142648), (4, 5356986), (6, 3571324), (8, 2678493), (12, 1785662), (24, 892831), (31, 691224), (62, 345612), (83, 258168), (93, 230408), (124, 172806), (166, 129084), (186, 115204), (248, 86403), (249, 86056), (332, 64542), (347, 61752), (372, 57602), (498, 43028), (664, 32271), (694, 30876), (744, 28801), (996, 21514), (1041, 20584), (1388, 15438), (1992, 10757), (2082, 10292), (2573, 8328), (2776, 7719), (4164, 5146)]