20723824

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{73}}^1\times {\mathrm{1613}}^1$

素因数の和:1705

約数の個数: 40

約数和(自身を含む): 44430192

約数和(自身を除く): 23706368

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 73, 88, 146, 176, 292, 584, 803, 1168, 1606, 1613, 3212, 3226, 6424, 6452, 12848, 12904, 17743, 25808, 35486, 70972, 117749, 141944, 235498, 283888, 470996, 941992, 1295239, 1883984, 2590478, 5180956, 10361912, 20723824]

約数ペア:

[(1, 20723824), (2, 10361912), (4, 5180956), (8, 2590478), (11, 1883984), (16, 1295239), (22, 941992), (44, 470996), (73, 283888), (88, 235498), (146, 141944), (176, 117749), (292, 70972), (584, 35486), (803, 25808), (1168, 17743), (1606, 12904), (1613, 12848), (3212, 6452), (3226, 6424)]