21160148

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{509}}^1\times {\mathrm{547}}^1$

素因数の和:1079

約数の個数: 24

約数和(自身を含む): 39127200

約数和(自身を除く): 17967052

約数列:

[1, 2, 4, 19, 38, 76, 509, 547, 1018, 1094, 2036, 2188, 9671, 10393, 19342, 20786, 38684, 41572, 278423, 556846, 1113692, 5290037, 10580074, 21160148]

約数ペア:

[(1, 21160148), (2, 10580074), (4, 5290037), (19, 1113692), (38, 556846), (76, 278423), (509, 41572), (547, 38684), (1018, 20786), (1094, 19342), (2036, 10393), (2188, 9671)]