21990652288

素因数分解:

$2^7\times {\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{74729}}^1$

素因数の和:74784

約数の個数: 96

約数和(自身を含む): 50689359000

約数和(自身を除く): 28698706712

約数列:

[1, 2, 4, 8, 11, 16, 19, 22, 32, 38, 44, 64, 76, 88, 121, 128, 152, 176, 209, 242, 304, 352, 418, 484, 608, 704, 836, 968, 1216, 1408, 1672, 1936, 2299, 2432, 3344, 3872, 4598, 6688, 7744, 9196, 13376, 15488, 18392, 26752, 36784, 73568, 74729, 147136, 149458, 294272, 298916, 597832, 822019, 1195664, 1419851, 1644038, 2391328, 2839702, 3288076, 4782656, 5679404, 6576152, 9042209, 9565312, 11358808, 13152304, 15618361, 18084418, 22717616, 26304608, 31236722, 36168836, 45435232, 52609216, 62473444, 72337672, 90870464, 105218432, 124946888, 144675344, 171801971, 181740928, 249893776, 289350688, 343603942, 499787552, 578701376, 687207884, 999575104, 1157402752, 1374415768, 1999150208, 2748831536, 5497663072, 10995326144, 21990652288]

約数ペア:

[(1, 21990652288), (2, 10995326144), (4, 5497663072), (8, 2748831536), (11, 1999150208), (16, 1374415768), (19, 1157402752), (22, 999575104), (32, 687207884), (38, 578701376), (44, 499787552), (64, 343603942), (76, 289350688), (88, 249893776), (121, 181740928), (128, 171801971), (152, 144675344), (176, 124946888), (209, 105218432), (242, 90870464), (304, 72337672), (352, 62473444), (418, 52609216), (484, 45435232), (608, 36168836), (704, 31236722), (836, 26304608), (968, 22717616), (1216, 18084418), (1408, 15618361), (1672, 13152304), (1936, 11358808), (2299, 9565312), (2432, 9042209), (3344, 6576152), (3872, 5679404), (4598, 4782656), (6688, 3288076), (7744, 2839702), (9196, 2391328), (13376, 1644038), (15488, 1419851), (18392, 1195664), (26752, 822019), (36784, 597832), (73568, 298916), (74729, 294272), (147136, 149458)]