20514928

素因数分解:

$2^4\times 7^2\times {\mathrm{137}}^1\times {\mathrm{191}}^1$

素因数の和:350

約数の個数: 60

約数和(自身を含む): 46818432

約数和(自身を除く): 26303504

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 49, 56, 98, 112, 137, 191, 196, 274, 382, 392, 548, 764, 784, 959, 1096, 1337, 1528, 1918, 2192, 2674, 3056, 3836, 5348, 6713, 7672, 9359, 10696, 13426, 15344, 18718, 21392, 26167, 26852, 37436, 52334, 53704, 74872, 104668, 107408, 149744, 183169, 209336, 366338, 418672, 732676, 1282183, 1465352, 2564366, 2930704, 5128732, 10257464, 20514928]

約数ペア:

[(1, 20514928), (2, 10257464), (4, 5128732), (7, 2930704), (8, 2564366), (14, 1465352), (16, 1282183), (28, 732676), (49, 418672), (56, 366338), (98, 209336), (112, 183169), (137, 149744), (191, 107408), (196, 104668), (274, 74872), (382, 53704), (392, 52334), (548, 37436), (764, 26852), (784, 26167), (959, 21392), (1096, 18718), (1337, 15344), (1528, 13426), (1918, 10696), (2192, 9359), (2674, 7672), (3056, 6713), (3836, 5348)]