20405574

素因数分解:

$2^1\times 3^3\times 7^1\times {\mathrm{37}}^1\times {\mathrm{1459}}^1$

素因数の和:1514

約数の個数: 64

約数和(自身を含む): 53260800

約数和(自身を除く): 32855226

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 37, 42, 54, 63, 74, 111, 126, 189, 222, 259, 333, 378, 518, 666, 777, 999, 1459, 1554, 1998, 2331, 2918, 4377, 4662, 6993, 8754, 10213, 13131, 13986, 20426, 26262, 30639, 39393, 53983, 61278, 78786, 91917, 107966, 161949, 183834, 275751, 323898, 377881, 485847, 551502, 755762, 971694, 1133643, 1457541, 2267286, 2915082, 3400929, 6801858, 10202787, 20405574]

約数ペア:

[(1, 20405574), (2, 10202787), (3, 6801858), (6, 3400929), (7, 2915082), (9, 2267286), (14, 1457541), (18, 1133643), (21, 971694), (27, 755762), (37, 551502), (42, 485847), (54, 377881), (63, 323898), (74, 275751), (111, 183834), (126, 161949), (189, 107966), (222, 91917), (259, 78786), (333, 61278), (378, 53983), (518, 39393), (666, 30639), (777, 26262), (999, 20426), (1459, 13986), (1554, 13131), (1998, 10213), (2331, 8754), (2918, 6993), (4377, 4662)]