18856964

素因数分解:

$2^2\times 7^2\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{89}}^1$

素因数の和:177

約数の個数: 72

約数和(自身を含む): 41368320

約数和(自身を除く): 22511356

約数列:

[1, 2, 4, 7, 14, 23, 28, 46, 47, 49, 89, 92, 94, 98, 161, 178, 188, 196, 322, 329, 356, 623, 644, 658, 1081, 1127, 1246, 1316, 2047, 2162, 2254, 2303, 2492, 4094, 4183, 4324, 4361, 4508, 4606, 7567, 8188, 8366, 8722, 9212, 14329, 15134, 16732, 17444, 28658, 29281, 30268, 52969, 57316, 58562, 96209, 100303, 105938, 117124, 192418, 200606, 204967, 211876, 384836, 401212, 409934, 673463, 819868, 1346926, 2693852, 4714241, 9428482, 18856964]

約数ペア:

[(1, 18856964), (2, 9428482), (4, 4714241), (7, 2693852), (14, 1346926), (23, 819868), (28, 673463), (46, 409934), (47, 401212), (49, 384836), (89, 211876), (92, 204967), (94, 200606), (98, 192418), (161, 117124), (178, 105938), (188, 100303), (196, 96209), (322, 58562), (329, 57316), (356, 52969), (623, 30268), (644, 29281), (658, 28658), (1081, 17444), (1127, 16732), (1246, 15134), (1316, 14329), (2047, 9212), (2162, 8722), (2254, 8366), (2303, 8188), (2492, 7567), (4094, 4606), (4183, 4508), (4324, 4361)]