18891453

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{113}}^1\times {\mathrm{419}}^1$

素因数の和:561

約数の個数: 32

約数和(自身を含む): 30643200

約数和(自身を除く): 11751747

約数列:

[1, 3, 7, 19, 21, 57, 113, 133, 339, 399, 419, 791, 1257, 2147, 2373, 2933, 6441, 7961, 8799, 15029, 23883, 45087, 47347, 55727, 142041, 167181, 331429, 899593, 994287, 2698779, 6297151, 18891453]

約数ペア:

[(1, 18891453), (3, 6297151), (7, 2698779), (19, 994287), (21, 899593), (57, 331429), (113, 167181), (133, 142041), (339, 55727), (399, 47347), (419, 45087), (791, 23883), (1257, 15029), (2147, 8799), (2373, 7961), (2933, 6441)]