207972219

素因数分解:

$3^1\times 7^4\times {\mathrm{13}}^1\times {\mathrm{2221}}^1$

素因数の和:2265

約数の個数: 40

約数和(自身を含む): 348534032

約数和(自身を除く): 140561813

約数列:

[1, 3, 7, 13, 21, 39, 49, 91, 147, 273, 343, 637, 1029, 1911, 2221, 2401, 4459, 6663, 7203, 13377, 15547, 28873, 31213, 46641, 86619, 93639, 108829, 202111, 326487, 606333, 761803, 1414777, 2285409, 4244331, 5332621, 9903439, 15997863, 29710317, 69324073, 207972219]

約数ペア:

[(1, 207972219), (3, 69324073), (7, 29710317), (13, 15997863), (21, 9903439), (39, 5332621), (49, 4244331), (91, 2285409), (147, 1414777), (273, 761803), (343, 606333), (637, 326487), (1029, 202111), (1911, 108829), (2221, 93639), (2401, 86619), (4459, 46641), (6663, 31213), (7203, 28873), (13377, 15547)]