20647926

素因数分解:

$2^1\times 3^3\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{439}}^1$

素因数の和:530

約数の個数: 64

約数和(自身を含む): 50265600

約数和(自身を除く): 29617674

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 27, 39, 54, 67, 78, 117, 134, 201, 234, 351, 402, 439, 603, 702, 871, 878, 1206, 1317, 1742, 1809, 2613, 2634, 3618, 3951, 5226, 5707, 7839, 7902, 11414, 11853, 15678, 17121, 23517, 23706, 29413, 34242, 47034, 51363, 58826, 88239, 102726, 154089, 176478, 264717, 308178, 382369, 529434, 764738, 794151, 1147107, 1588302, 2294214, 3441321, 6882642, 10323963, 20647926]

約数ペア:

[(1, 20647926), (2, 10323963), (3, 6882642), (6, 3441321), (9, 2294214), (13, 1588302), (18, 1147107), (26, 794151), (27, 764738), (39, 529434), (54, 382369), (67, 308178), (78, 264717), (117, 176478), (134, 154089), (201, 102726), (234, 88239), (351, 58826), (402, 51363), (439, 47034), (603, 34242), (702, 29413), (871, 23706), (878, 23517), (1206, 17121), (1317, 15678), (1742, 11853), (1809, 11414), (2613, 7902), (2634, 7839), (3618, 5707), (3951, 5226)]