18309711

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{109}}^1\times {\mathrm{421}}^1$

素因数の和:559

約数の個数: 32

約数和(自身を含む): 29708800

約数和(自身を除く): 11399089

約数列:

[1, 3, 7, 19, 21, 57, 109, 133, 327, 399, 421, 763, 1263, 2071, 2289, 2947, 6213, 7999, 8841, 14497, 23997, 43491, 45889, 55993, 137667, 167979, 321223, 871891, 963669, 2615673, 6103237, 18309711]

約数ペア:

[(1, 18309711), (3, 6103237), (7, 2615673), (19, 963669), (21, 871891), (57, 321223), (109, 167979), (133, 137667), (327, 55993), (399, 45889), (421, 43491), (763, 23997), (1263, 14497), (2071, 8841), (2289, 7999), (2947, 6213)]