19681025427

素因数分解:

$3^2\times 7^1\times {\mathrm{349}}^1\times {\mathrm{439}}^1\times {\mathrm{2039}}^1$

素因数の和:2840

約数の個数: 48

約数和(自身を含む): 32672640000

約数和(自身を除く): 12991614573

約数列:

[1, 3, 7, 9, 21, 63, 349, 439, 1047, 1317, 2039, 2443, 3073, 3141, 3951, 6117, 7329, 9219, 14273, 18351, 21987, 27657, 42819, 128457, 153211, 459633, 711611, 895121, 1072477, 1378899, 2134833, 2685363, 3217431, 4981277, 6265847, 6404499, 8056089, 9652293, 14943831, 18797541, 44831493, 56392623, 312397229, 937191687, 2186780603, 2811575061, 6560341809, 19681025427]

約数ペア:

[(1, 19681025427), (3, 6560341809), (7, 2811575061), (9, 2186780603), (21, 937191687), (63, 312397229), (349, 56392623), (439, 44831493), (1047, 18797541), (1317, 14943831), (2039, 9652293), (2443, 8056089), (3073, 6404499), (3141, 6265847), (3951, 4981277), (6117, 3217431), (7329, 2685363), (9219, 2134833), (14273, 1378899), (18351, 1072477), (21987, 895121), (27657, 711611), (42819, 459633), (128457, 153211)]