21628178

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{1609}}^1$

素因数の和:1682

約数の個数: 32

約数和(自身を含む): 38949120

約数和(自身を除く): 17320942

約数列:

[1, 2, 11, 13, 22, 26, 47, 94, 143, 286, 517, 611, 1034, 1222, 1609, 3218, 6721, 13442, 17699, 20917, 35398, 41834, 75623, 151246, 230087, 460174, 831853, 983099, 1663706, 1966198, 10814089, 21628178]

約数ペア:

[(1, 21628178), (2, 10814089), (11, 1966198), (13, 1663706), (22, 983099), (26, 831853), (47, 460174), (94, 230087), (143, 151246), (286, 75623), (517, 41834), (611, 35398), (1034, 20917), (1222, 17699), (1609, 13442), (3218, 6721)]