21000304878

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{113}}^1\times {\mathrm{107923}}^1$

素因数の和:108089

約数の個数: 64

約数和(自身を含む): 49607050752

約数和(自身を除く): 28606745874

約数列:

[1, 2, 3, 6, 7, 14, 21, 41, 42, 82, 113, 123, 226, 246, 287, 339, 574, 678, 791, 861, 1582, 1722, 2373, 4633, 4746, 9266, 13899, 27798, 32431, 64862, 97293, 107923, 194586, 215846, 323769, 647538, 755461, 1510922, 2266383, 4424843, 4532766, 8849686, 12195299, 13274529, 24390598, 26549058, 30973901, 36585897, 61947802, 73171794, 85367093, 92921703, 170734186, 185843406, 256101279, 500007259, 512202558, 1000014518, 1500021777, 3000043554, 3500050813, 7000101626, 10500152439, 21000304878]

約数ペア:

[(1, 21000304878), (2, 10500152439), (3, 7000101626), (6, 3500050813), (7, 3000043554), (14, 1500021777), (21, 1000014518), (41, 512202558), (42, 500007259), (82, 256101279), (113, 185843406), (123, 170734186), (226, 92921703), (246, 85367093), (287, 73171794), (339, 61947802), (574, 36585897), (678, 30973901), (791, 26549058), (861, 24390598), (1582, 13274529), (1722, 12195299), (2373, 8849686), (4633, 4532766), (4746, 4424843), (9266, 2266383), (13899, 1510922), (27798, 755461), (32431, 647538), (64862, 323769), (97293, 215846), (107923, 194586)]