21405996

素因数分解:

$2^2\times 3^2\times {\mathrm{31}}^1\times {\mathrm{19181}}^1$

素因数の和:19222

約数の個数: 36

約数和(自身を含む): 55857984

約数和(自身を除く): 34451988

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 31, 36, 62, 93, 124, 186, 279, 372, 558, 1116, 19181, 38362, 57543, 76724, 115086, 172629, 230172, 345258, 594611, 690516, 1189222, 1783833, 2378444, 3567666, 5351499, 7135332, 10702998, 21405996]

約数ペア:

[(1, 21405996), (2, 10702998), (3, 7135332), (4, 5351499), (6, 3567666), (9, 2378444), (12, 1783833), (18, 1189222), (31, 690516), (36, 594611), (62, 345258), (93, 230172), (124, 172629), (186, 115086), (279, 76724), (372, 57543), (558, 38362), (1116, 19181)]