21322928

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{97}}^1\times {\mathrm{1249}}^1$

素因数の和:1365

約数の個数: 40

約数和(自身を含む): 45570000

約数和(自身を除く): 24247072

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 97, 176, 194, 388, 776, 1067, 1249, 1552, 2134, 2498, 4268, 4996, 8536, 9992, 13739, 17072, 19984, 27478, 54956, 109912, 121153, 219824, 242306, 484612, 969224, 1332683, 1938448, 2665366, 5330732, 10661464, 21322928]

約数ペア:

[(1, 21322928), (2, 10661464), (4, 5330732), (8, 2665366), (11, 1938448), (16, 1332683), (22, 969224), (44, 484612), (88, 242306), (97, 219824), (176, 121153), (194, 109912), (388, 54956), (776, 27478), (1067, 19984), (1249, 17072), (1552, 13739), (2134, 9992), (2498, 8536), (4268, 4996)]