18999974

素因数分解:

$2^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{79}}^1\times {\mathrm{419}}^1$

素因数の和:548

約数の個数: 32

約数和(自身を含む): 33868800

約数和(自身を除く): 14868826

約数列:

[1, 2, 7, 14, 41, 79, 82, 158, 287, 419, 553, 574, 838, 1106, 2933, 3239, 5866, 6478, 17179, 22673, 33101, 34358, 45346, 66202, 120253, 231707, 240506, 463414, 1357141, 2714282, 9499987, 18999974]

約数ペア:

[(1, 18999974), (2, 9499987), (7, 2714282), (14, 1357141), (41, 463414), (79, 240506), (82, 231707), (158, 120253), (287, 66202), (419, 45346), (553, 34358), (574, 33101), (838, 22673), (1106, 17179), (2933, 6478), (3239, 5866)]