20779136

素因数分解:

$2^7\times 7^2\times {\mathrm{3313}}^1$

素因数の和:3341

約数の個数: 48

約数和(自身を含む): 48168990

約数和(自身を除く): 27389854

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 49, 56, 64, 98, 112, 128, 196, 224, 392, 448, 784, 896, 1568, 3136, 3313, 6272, 6626, 13252, 23191, 26504, 46382, 53008, 92764, 106016, 162337, 185528, 212032, 324674, 371056, 424064, 649348, 742112, 1298696, 1484224, 2597392, 2968448, 5194784, 10389568, 20779136]

約数ペア:

[(1, 20779136), (2, 10389568), (4, 5194784), (7, 2968448), (8, 2597392), (14, 1484224), (16, 1298696), (28, 742112), (32, 649348), (49, 424064), (56, 371056), (64, 324674), (98, 212032), (112, 185528), (128, 162337), (196, 106016), (224, 92764), (392, 53008), (448, 46382), (784, 26504), (896, 23191), (1568, 13252), (3136, 6626), (3313, 6272)]