20531502

素因数分解:

$2^1\times 3^3\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{271}}^1$

素因数の和:366

約数の個数: 64

約数和(自身を含む): 48568320

約数和(自身を除く): 28036818

約数列:

[1, 2, 3, 6, 9, 18, 23, 27, 46, 54, 61, 69, 122, 138, 183, 207, 271, 366, 414, 542, 549, 621, 813, 1098, 1242, 1403, 1626, 1647, 2439, 2806, 3294, 4209, 4878, 6233, 7317, 8418, 12466, 12627, 14634, 16531, 18699, 25254, 33062, 37398, 37881, 49593, 56097, 75762, 99186, 112194, 148779, 168291, 297558, 336582, 380213, 446337, 760426, 892674, 1140639, 2281278, 3421917, 6843834, 10265751, 20531502]

約数ペア:

[(1, 20531502), (2, 10265751), (3, 6843834), (6, 3421917), (9, 2281278), (18, 1140639), (23, 892674), (27, 760426), (46, 446337), (54, 380213), (61, 336582), (69, 297558), (122, 168291), (138, 148779), (183, 112194), (207, 99186), (271, 75762), (366, 56097), (414, 49593), (542, 37881), (549, 37398), (621, 33062), (813, 25254), (1098, 18699), (1242, 16531), (1403, 14634), (1626, 12627), (1647, 12466), (2439, 8418), (2806, 7317), (3294, 6233), (4209, 4878)]