20821992

素因数分解:

$2^3\times 3^1\times {\mathrm{23}}^1\times {\mathrm{67}}^1\times {\mathrm{563}}^1$

素因数の和:662

約数の個数: 64

約数和(自身を含む): 55226880

約数和(自身を除く): 34404888

約数列:

[1, 2, 3, 4, 6, 8, 12, 23, 24, 46, 67, 69, 92, 134, 138, 184, 201, 268, 276, 402, 536, 552, 563, 804, 1126, 1541, 1608, 1689, 2252, 3082, 3378, 4504, 4623, 6164, 6756, 9246, 12328, 12949, 13512, 18492, 25898, 36984, 37721, 38847, 51796, 75442, 77694, 103592, 113163, 150884, 155388, 226326, 301768, 310776, 452652, 867583, 905304, 1735166, 2602749, 3470332, 5205498, 6940664, 10410996, 20821992]

約数ペア:

[(1, 20821992), (2, 10410996), (3, 6940664), (4, 5205498), (6, 3470332), (8, 2602749), (12, 1735166), (23, 905304), (24, 867583), (46, 452652), (67, 310776), (69, 301768), (92, 226326), (134, 155388), (138, 150884), (184, 113163), (201, 103592), (268, 77694), (276, 75442), (402, 51796), (536, 38847), (552, 37721), (563, 36984), (804, 25898), (1126, 18492), (1541, 13512), (1608, 12949), (1689, 12328), (2252, 9246), (3082, 6756), (3378, 6164), (4504, 4623)]