20931872

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{751}}^1$

素因数の和:841

約数の個数: 48

約数和(自身を含む): 45101952

約数和(自身を除く): 24170080

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 67, 104, 134, 208, 268, 416, 536, 751, 871, 1072, 1502, 1742, 2144, 3004, 3484, 6008, 6968, 9763, 12016, 13936, 19526, 24032, 27872, 39052, 50317, 78104, 100634, 156208, 201268, 312416, 402536, 654121, 805072, 1308242, 1610144, 2616484, 5232968, 10465936, 20931872]

約数ペア:

[(1, 20931872), (2, 10465936), (4, 5232968), (8, 2616484), (13, 1610144), (16, 1308242), (26, 805072), (32, 654121), (52, 402536), (67, 312416), (104, 201268), (134, 156208), (208, 100634), (268, 78104), (416, 50317), (536, 39052), (751, 27872), (871, 24032), (1072, 19526), (1502, 13936), (1742, 12016), (2144, 9763), (3004, 6968), (3484, 6008)]