21520696

素因数分解:

$2^3\times {\mathrm{31}}^1\times {\mathrm{107}}^1\times {\mathrm{811}}^1$

素因数の和:955

約数の個数: 32

約数和(自身を含む): 42094080

約数和(自身を除く): 20573384

約数列:

[1, 2, 4, 8, 31, 62, 107, 124, 214, 248, 428, 811, 856, 1622, 3244, 3317, 6488, 6634, 13268, 25141, 26536, 50282, 86777, 100564, 173554, 201128, 347108, 694216, 2690087, 5380174, 10760348, 21520696]

約数ペア:

[(1, 21520696), (2, 10760348), (4, 5380174), (8, 2690087), (31, 694216), (62, 347108), (107, 201128), (124, 173554), (214, 100564), (248, 86777), (428, 50282), (811, 26536), (856, 25141), (1622, 13268), (3244, 6634), (3317, 6488)]