20959808

素因数分解:

$2^6\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{491}}^1$

素因数の和:555

約数の個数: 56

約数和(自身を含む): 44988480

約数和(自身を除く): 24028672

約数列:

[1, 2, 4, 8, 16, 23, 29, 32, 46, 58, 64, 92, 116, 184, 232, 368, 464, 491, 667, 736, 928, 982, 1334, 1472, 1856, 1964, 2668, 3928, 5336, 7856, 10672, 11293, 14239, 15712, 21344, 22586, 28478, 31424, 42688, 45172, 56956, 90344, 113912, 180688, 227824, 327497, 361376, 455648, 654994, 722752, 911296, 1309988, 2619976, 5239952, 10479904, 20959808]

約数ペア:

[(1, 20959808), (2, 10479904), (4, 5239952), (8, 2619976), (16, 1309988), (23, 911296), (29, 722752), (32, 654994), (46, 455648), (58, 361376), (64, 327497), (92, 227824), (116, 180688), (184, 113912), (232, 90344), (368, 56956), (464, 45172), (491, 42688), (667, 31424), (736, 28478), (928, 22586), (982, 21344), (1334, 15712), (1472, 14239), (1856, 11293), (1964, 10672), (2668, 7856), (3928, 5336)]