21218184

素因数分解:

$2^3\times 3^2\times {\mathrm{13}}^1\times {\mathrm{22669}}^1$

素因数の和:22694

約数の個数: 48

約数和(自身を含む): 61889100

約数和(自身を除く): 40670916

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 18, 24, 26, 36, 39, 52, 72, 78, 104, 117, 156, 234, 312, 468, 936, 22669, 45338, 68007, 90676, 136014, 181352, 204021, 272028, 294697, 408042, 544056, 589394, 816084, 884091, 1178788, 1632168, 1768182, 2357576, 2652273, 3536364, 5304546, 7072728, 10609092, 21218184]

約数ペア:

[(1, 21218184), (2, 10609092), (3, 7072728), (4, 5304546), (6, 3536364), (8, 2652273), (9, 2357576), (12, 1768182), (13, 1632168), (18, 1178788), (24, 884091), (26, 816084), (36, 589394), (39, 544056), (52, 408042), (72, 294697), (78, 272028), (104, 204021), (117, 181352), (156, 136014), (234, 90676), (312, 68007), (468, 45338), (936, 22669)]