20724408

素因数分解:

$2^3\times 3^2\times {\mathrm{73}}^1\times {\mathrm{3943}}^1$

素因数の和:4028

約数の個数: 48

約数和(自身を含む): 56911920

約数和(自身を除く): 36187512

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72, 73, 146, 219, 292, 438, 584, 657, 876, 1314, 1752, 2628, 3943, 5256, 7886, 11829, 15772, 23658, 31544, 35487, 47316, 70974, 94632, 141948, 283896, 287839, 575678, 863517, 1151356, 1727034, 2302712, 2590551, 3454068, 5181102, 6908136, 10362204, 20724408]

約数ペア:

[(1, 20724408), (2, 10362204), (3, 6908136), (4, 5181102), (6, 3454068), (8, 2590551), (9, 2302712), (12, 1727034), (18, 1151356), (24, 863517), (36, 575678), (72, 287839), (73, 283896), (146, 141948), (219, 94632), (292, 70974), (438, 47316), (584, 35487), (657, 31544), (876, 23658), (1314, 15772), (1752, 11829), (2628, 7886), (3943, 5256)]