21034454

素因数分解:

$2^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{103}}^1\times {\mathrm{503}}^1$

素因数の和:644

約数の個数: 32

約数和(自身を含む): 37739520

約数和(自身を除く): 16705066

約数列:

[1, 2, 7, 14, 29, 58, 103, 203, 206, 406, 503, 721, 1006, 1442, 2987, 3521, 5974, 7042, 14587, 20909, 29174, 41818, 51809, 102109, 103618, 204218, 362663, 725326, 1502461, 3004922, 10517227, 21034454]

約数ペア:

[(1, 21034454), (2, 10517227), (7, 3004922), (14, 1502461), (29, 725326), (58, 362663), (103, 204218), (203, 103618), (206, 102109), (406, 51809), (503, 41818), (721, 29174), (1006, 20909), (1442, 14587), (2987, 7042), (3521, 5974)]