21006666

素因数分解:

$2^1\times 3^2\times {\mathrm{19}}^1\times {\mathrm{239}}^1\times {\mathrm{257}}^1$

素因数の和:523

約数の個数: 48

約数和(自身を含む): 48297600

約数和(自身を除く): 27290934

約数列:

[1, 2, 3, 6, 9, 18, 19, 38, 57, 114, 171, 239, 257, 342, 478, 514, 717, 771, 1434, 1542, 2151, 2313, 4302, 4541, 4626, 4883, 9082, 9766, 13623, 14649, 27246, 29298, 40869, 43947, 61423, 81738, 87894, 122846, 184269, 368538, 552807, 1105614, 1167037, 2334074, 3501111, 7002222, 10503333, 21006666]

約数ペア:

[(1, 21006666), (2, 10503333), (3, 7002222), (6, 3501111), (9, 2334074), (18, 1167037), (19, 1105614), (38, 552807), (57, 368538), (114, 184269), (171, 122846), (239, 87894), (257, 81738), (342, 61423), (478, 43947), (514, 40869), (717, 29298), (771, 27246), (1434, 14649), (1542, 13623), (2151, 9766), (2313, 9082), (4302, 4883), (4541, 4626)]