18995872

素因数分解:

$2^5\times 7^1\times {\mathrm{137}}^1\times {\mathrm{619}}^1$

素因数の和:773

約数の個数: 48

約数和(自身を含む): 43122240

約数和(自身を除く): 24126368

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 112, 137, 224, 274, 548, 619, 959, 1096, 1238, 1918, 2192, 2476, 3836, 4333, 4384, 4952, 7672, 8666, 9904, 15344, 17332, 19808, 30688, 34664, 69328, 84803, 138656, 169606, 339212, 593621, 678424, 1187242, 1356848, 2374484, 2713696, 4748968, 9497936, 18995872]

約数ペア:

[(1, 18995872), (2, 9497936), (4, 4748968), (7, 2713696), (8, 2374484), (14, 1356848), (16, 1187242), (28, 678424), (32, 593621), (56, 339212), (112, 169606), (137, 138656), (224, 84803), (274, 69328), (548, 34664), (619, 30688), (959, 19808), (1096, 17332), (1238, 15344), (1918, 9904), (2192, 8666), (2476, 7672), (3836, 4952), (4333, 4384)]