20179278

素因数分解:

$2^1\times 3^2\times 7^2\times {\mathrm{137}}^1\times {\mathrm{167}}^1$

素因数の和:326

約数の個数: 72

約数和(自身を含む): 51538032

約数和(自身を除く): 31358754

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 49, 63, 98, 126, 137, 147, 167, 274, 294, 334, 411, 441, 501, 822, 882, 959, 1002, 1169, 1233, 1503, 1918, 2338, 2466, 2877, 3006, 3507, 5754, 6713, 7014, 8183, 8631, 10521, 13426, 16366, 17262, 20139, 21042, 22879, 24549, 40278, 45758, 49098, 60417, 68637, 73647, 120834, 137274, 147294, 160153, 205911, 320306, 411822, 480459, 960918, 1121071, 1441377, 2242142, 2882754, 3363213, 6726426, 10089639, 20179278]

約数ペア:

[(1, 20179278), (2, 10089639), (3, 6726426), (6, 3363213), (7, 2882754), (9, 2242142), (14, 1441377), (18, 1121071), (21, 960918), (42, 480459), (49, 411822), (63, 320306), (98, 205911), (126, 160153), (137, 147294), (147, 137274), (167, 120834), (274, 73647), (294, 68637), (334, 60417), (411, 49098), (441, 45758), (501, 40278), (822, 24549), (882, 22879), (959, 21042), (1002, 20139), (1169, 17262), (1233, 16366), (1503, 13426), (1918, 10521), (2338, 8631), (2466, 8183), (2877, 7014), (3006, 6713), (3507, 5754)]