21483440

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{24413}}^1$

素因数の和:24437

約数の個数: 40

約数和(自身を含む): 54492048

約数和(自身を除く): 33008608

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 880, 24413, 48826, 97652, 122065, 195304, 244130, 268543, 390608, 488260, 537086, 976520, 1074172, 1342715, 1953040, 2148344, 2685430, 4296688, 5370860, 10741720, 21483440]

約数ペア:

[(1, 21483440), (2, 10741720), (4, 5370860), (5, 4296688), (8, 2685430), (10, 2148344), (11, 1953040), (16, 1342715), (20, 1074172), (22, 976520), (40, 537086), (44, 488260), (55, 390608), (80, 268543), (88, 244130), (110, 195304), (176, 122065), (220, 97652), (440, 48826), (880, 24413)]