21358638

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{179}}^1\times {\mathrm{947}}^1$

素因数の和:1141

約数の個数: 48

約数和(自身を含む): 53239680

約数和(自身を除く): 31881042

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 126, 179, 358, 537, 947, 1074, 1253, 1611, 1894, 2506, 2841, 3222, 3759, 5682, 6629, 7518, 8523, 11277, 13258, 17046, 19887, 22554, 39774, 59661, 119322, 169513, 339026, 508539, 1017078, 1186591, 1525617, 2373182, 3051234, 3559773, 7119546, 10679319, 21358638]

約数ペア:

[(1, 21358638), (2, 10679319), (3, 7119546), (6, 3559773), (7, 3051234), (9, 2373182), (14, 1525617), (18, 1186591), (21, 1017078), (42, 508539), (63, 339026), (126, 169513), (179, 119322), (358, 59661), (537, 39774), (947, 22554), (1074, 19887), (1253, 17046), (1611, 13258), (1894, 11277), (2506, 8523), (2841, 7518), (3222, 6629), (3759, 5682)]