19981836

素因数分解:

$2^2\times 3^3\times 7^1\times {\mathrm{26431}}^1$

素因数の和:26451

約数の個数: 48

約数和(自身を含む): 59207680

約数和(自身を除く): 39225844

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 27, 28, 36, 42, 54, 63, 84, 108, 126, 189, 252, 378, 756, 26431, 52862, 79293, 105724, 158586, 185017, 237879, 317172, 370034, 475758, 555051, 713637, 740068, 951516, 1110102, 1427274, 1665153, 2220204, 2854548, 3330306, 4995459, 6660612, 9990918, 19981836]

約数ペア:

[(1, 19981836), (2, 9990918), (3, 6660612), (4, 4995459), (6, 3330306), (7, 2854548), (9, 2220204), (12, 1665153), (14, 1427274), (18, 1110102), (21, 951516), (27, 740068), (28, 713637), (36, 555051), (42, 475758), (54, 370034), (63, 317172), (84, 237879), (108, 185017), (126, 158586), (189, 105724), (252, 79293), (378, 52862), (756, 26431)]