19286528

素因数分解:

$2^9\times {\mathrm{139}}^1\times {\mathrm{271}}^1$

素因数の和:428

約数の個数: 40

約数和(自身を含む): 38955840

約数和(自身を除く): 19669312

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 139, 256, 271, 278, 512, 542, 556, 1084, 1112, 2168, 2224, 4336, 4448, 8672, 8896, 17344, 17792, 34688, 35584, 37669, 69376, 71168, 75338, 138752, 150676, 301352, 602704, 1205408, 2410816, 4821632, 9643264, 19286528]

約数ペア:

[(1, 19286528), (2, 9643264), (4, 4821632), (8, 2410816), (16, 1205408), (32, 602704), (64, 301352), (128, 150676), (139, 138752), (256, 75338), (271, 71168), (278, 69376), (512, 37669), (542, 35584), (556, 34688), (1084, 17792), (1112, 17344), (2168, 8896), (2224, 8672), (4336, 4448)]