16688763

素因数分解:

$3^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{71}}^1$

素因数の和:145

約数の個数: 72

約数和(自身を含む): 31370976

約数和(自身を除く): 14682213

約数列:

[1, 3, 7, 9, 13, 21, 39, 41, 49, 63, 71, 91, 117, 123, 147, 213, 273, 287, 369, 441, 497, 533, 637, 639, 819, 861, 923, 1491, 1599, 1911, 2009, 2583, 2769, 2911, 3479, 3731, 4473, 4797, 5733, 6027, 6461, 8307, 8733, 10437, 11193, 18081, 19383, 20377, 26117, 26199, 31311, 33579, 37843, 45227, 58149, 61131, 78351, 113529, 135681, 142639, 183393, 235053, 264901, 340587, 407043, 427917, 794703, 1283751, 1854307, 2384109, 5562921, 16688763]

約数ペア:

[(1, 16688763), (3, 5562921), (7, 2384109), (9, 1854307), (13, 1283751), (21, 794703), (39, 427917), (41, 407043), (49, 340587), (63, 264901), (71, 235053), (91, 183393), (117, 142639), (123, 135681), (147, 113529), (213, 78351), (273, 61131), (287, 58149), (369, 45227), (441, 37843), (497, 33579), (533, 31311), (637, 26199), (639, 26117), (819, 20377), (861, 19383), (923, 18081), (1491, 11193), (1599, 10437), (1911, 8733), (2009, 8307), (2583, 6461), (2769, 6027), (2911, 5733), (3479, 4797), (3731, 4473)]