20953644

素因数分解:

$2^2\times 3^1\times {\mathrm{23}}^1\times {\mathrm{31}}^2\times {\mathrm{79}}^1$

素因数の和:171

約数の個数: 72

約数和(自身を含む): 53383680

約数和(自身を除く): 32430036

約数列:

[1, 2, 3, 4, 6, 12, 23, 31, 46, 62, 69, 79, 92, 93, 124, 138, 158, 186, 237, 276, 316, 372, 474, 713, 948, 961, 1426, 1817, 1922, 2139, 2449, 2852, 2883, 3634, 3844, 4278, 4898, 5451, 5766, 7268, 7347, 8556, 9796, 10902, 11532, 14694, 21804, 22103, 29388, 44206, 56327, 66309, 75919, 88412, 112654, 132618, 151838, 168981, 225308, 227757, 265236, 303676, 337962, 455514, 675924, 911028, 1746137, 3492274, 5238411, 6984548, 10476822, 20953644]

約数ペア:

[(1, 20953644), (2, 10476822), (3, 6984548), (4, 5238411), (6, 3492274), (12, 1746137), (23, 911028), (31, 675924), (46, 455514), (62, 337962), (69, 303676), (79, 265236), (92, 227757), (93, 225308), (124, 168981), (138, 151838), (158, 132618), (186, 112654), (237, 88412), (276, 75919), (316, 66309), (372, 56327), (474, 44206), (713, 29388), (948, 22103), (961, 21804), (1426, 14694), (1817, 11532), (1922, 10902), (2139, 9796), (2449, 8556), (2852, 7347), (2883, 7268), (3634, 5766), (3844, 5451), (4278, 4898)]