21472984

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{191}}^1$

素因数の和:280

約数の個数: 64

約数和(自身を含む): 46448640

約数和(自身を除く): 24975656

約数列:

[1, 2, 4, 8, 13, 23, 26, 46, 47, 52, 92, 94, 104, 184, 188, 191, 299, 376, 382, 598, 611, 764, 1081, 1196, 1222, 1528, 2162, 2392, 2444, 2483, 4324, 4393, 4888, 4966, 8648, 8786, 8977, 9932, 14053, 17572, 17954, 19864, 28106, 35144, 35908, 56212, 57109, 71816, 112424, 114218, 116701, 206471, 228436, 233402, 412942, 456872, 466804, 825884, 933608, 1651768, 2684123, 5368246, 10736492, 21472984]

約数ペア:

[(1, 21472984), (2, 10736492), (4, 5368246), (8, 2684123), (13, 1651768), (23, 933608), (26, 825884), (46, 466804), (47, 456872), (52, 412942), (92, 233402), (94, 228436), (104, 206471), (184, 116701), (188, 114218), (191, 112424), (299, 71816), (376, 57109), (382, 56212), (598, 35908), (611, 35144), (764, 28106), (1081, 19864), (1196, 17954), (1222, 17572), (1528, 14053), (2162, 9932), (2392, 8977), (2444, 8786), (2483, 8648), (4324, 4966), (4393, 4888)]