21458416

素因数分解:

$2^4\times 7^1\times {\mathrm{41}}^1\times {\mathrm{4673}}^1$

素因数の和:4729

約数の個数: 40

約数和(自身を含む): 48684384

約数和(自身を除く): 27225968

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 41, 56, 82, 112, 164, 287, 328, 574, 656, 1148, 2296, 4592, 4673, 9346, 18692, 32711, 37384, 65422, 74768, 130844, 191593, 261688, 383186, 523376, 766372, 1341151, 1532744, 2682302, 3065488, 5364604, 10729208, 21458416]

約数ペア:

[(1, 21458416), (2, 10729208), (4, 5364604), (7, 3065488), (8, 2682302), (14, 1532744), (16, 1341151), (28, 766372), (41, 523376), (56, 383186), (82, 261688), (112, 191593), (164, 130844), (287, 74768), (328, 65422), (574, 37384), (656, 32711), (1148, 18692), (2296, 9346), (4592, 4673)]