20881910

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{9623}}^1$

素因数の和:9668

約数の個数: 32

約数和(自身を含む): 44347392

約数和(自身を除く): 23465482

約数列:

[1, 2, 5, 7, 10, 14, 31, 35, 62, 70, 155, 217, 310, 434, 1085, 2170, 9623, 19246, 48115, 67361, 96230, 134722, 298313, 336805, 596626, 673610, 1491565, 2088191, 2983130, 4176382, 10440955, 20881910]

約数ペア:

[(1, 20881910), (2, 10440955), (5, 4176382), (7, 2983130), (10, 2088191), (14, 1491565), (31, 673610), (35, 596626), (62, 336805), (70, 298313), (155, 134722), (217, 96230), (310, 67361), (434, 48115), (1085, 19246), (2170, 9623)]