18861129

素因数分解:

$3^2\times 7^2\times {\mathrm{19}}^1\times {\mathrm{2251}}^1$

素因数の和:2290

約数の個数: 36

約数和(自身を含む): 33374640

約数和(自身を除く): 14513511

約数列:

[1, 3, 7, 9, 19, 21, 49, 57, 63, 133, 147, 171, 399, 441, 931, 1197, 2251, 2793, 6753, 8379, 15757, 20259, 42769, 47271, 110299, 128307, 141813, 299383, 330897, 384921, 898149, 992691, 2095681, 2694447, 6287043, 18861129]

約数ペア:

[(1, 18861129), (3, 6287043), (7, 2694447), (9, 2095681), (19, 992691), (21, 898149), (49, 384921), (57, 330897), (63, 299383), (133, 141813), (147, 128307), (171, 110299), (399, 47271), (441, 42769), (931, 20259), (1197, 15757), (2251, 8379), (2793, 6753)]