21037086

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{199}}^1\times {\mathrm{839}}^1$

素因数の和:1053

約数の個数: 48

約数和(自身を含む): 52416000

約数和(自身を除く): 31378914

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 126, 199, 398, 597, 839, 1194, 1393, 1678, 1791, 2517, 2786, 3582, 4179, 5034, 5873, 7551, 8358, 11746, 12537, 15102, 17619, 25074, 35238, 52857, 105714, 166961, 333922, 500883, 1001766, 1168727, 1502649, 2337454, 3005298, 3506181, 7012362, 10518543, 21037086]

約数ペア:

[(1, 21037086), (2, 10518543), (3, 7012362), (6, 3506181), (7, 3005298), (9, 2337454), (14, 1502649), (18, 1168727), (21, 1001766), (42, 500883), (63, 333922), (126, 166961), (199, 105714), (398, 52857), (597, 35238), (839, 25074), (1194, 17619), (1393, 15102), (1678, 12537), (1791, 11746), (2517, 8358), (2786, 7551), (3582, 5873), (4179, 5034)]