20697088

素因数分解:

$2^{12}\times {\mathrm{31}}^1\times {\mathrm{163}}^1$

素因数の和:218

約数の個数: 52

約数和(自身を含む): 42986368

約数和(自身を除く): 22289280

約数列:

[1, 2, 4, 8, 16, 31, 32, 62, 64, 124, 128, 163, 248, 256, 326, 496, 512, 652, 992, 1024, 1304, 1984, 2048, 2608, 3968, 4096, 5053, 5216, 7936, 10106, 10432, 15872, 20212, 20864, 31744, 40424, 41728, 63488, 80848, 83456, 126976, 161696, 166912, 323392, 333824, 646784, 667648, 1293568, 2587136, 5174272, 10348544, 20697088]

約数ペア:

[(1, 20697088), (2, 10348544), (4, 5174272), (8, 2587136), (16, 1293568), (31, 667648), (32, 646784), (62, 333824), (64, 323392), (124, 166912), (128, 161696), (163, 126976), (248, 83456), (256, 80848), (326, 63488), (496, 41728), (512, 40424), (652, 31744), (992, 20864), (1024, 20212), (1304, 15872), (1984, 10432), (2048, 10106), (2608, 7936), (3968, 5216), (4096, 5053)]