20853203

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{401}}^1$

素因数の和:467

約数の個数: 32

約数和(自身を含む): 27786240

約数和(自身を除く): 6933037

約数列:

[1, 7, 17, 19, 23, 119, 133, 161, 323, 391, 401, 437, 2261, 2737, 2807, 3059, 6817, 7429, 7619, 9223, 47719, 52003, 53333, 64561, 129523, 156791, 175237, 906661, 1097537, 1226659, 2979029, 20853203]

約数ペア:

[(1, 20853203), (7, 2979029), (17, 1226659), (19, 1097537), (23, 906661), (119, 175237), (133, 156791), (161, 129523), (323, 64561), (391, 53333), (401, 52003), (437, 47719), (2261, 9223), (2737, 7619), (2807, 7429), (3059, 6817)]