20573757

素因数分解:

$3^4\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{223}}^1$

素因数の和:319

約数の個数: 40

約数和(自身を含む): 33175296

約数和(自身を除く): 12601539

約数列:

[1, 3, 9, 17, 27, 51, 67, 81, 153, 201, 223, 459, 603, 669, 1139, 1377, 1809, 2007, 3417, 3791, 5427, 6021, 10251, 11373, 14941, 18063, 30753, 34119, 44823, 92259, 102357, 134469, 253997, 307071, 403407, 761991, 1210221, 2285973, 6857919, 20573757]

約数ペア:

[(1, 20573757), (3, 6857919), (9, 2285973), (17, 1210221), (27, 761991), (51, 403407), (67, 307071), (81, 253997), (153, 134469), (201, 102357), (223, 92259), (459, 44823), (603, 34119), (669, 30753), (1139, 18063), (1377, 14941), (1809, 11373), (2007, 10251), (3417, 6021), (3791, 5427)]