21324992

素因数分解:

$2^6\times {\mathrm{13}}^1\times {\mathrm{19}}^2\times {\mathrm{71}}^1$

素因数の和:134

約数の個数: 84

約数和(自身を含む): 48774096

約数和(自身を除く): 27449104

約数列:

[1, 2, 4, 8, 13, 16, 19, 26, 32, 38, 52, 64, 71, 76, 104, 142, 152, 208, 247, 284, 304, 361, 416, 494, 568, 608, 722, 832, 923, 988, 1136, 1216, 1349, 1444, 1846, 1976, 2272, 2698, 2888, 3692, 3952, 4544, 4693, 5396, 5776, 7384, 7904, 9386, 10792, 11552, 14768, 15808, 17537, 18772, 21584, 23104, 25631, 29536, 35074, 37544, 43168, 51262, 59072, 70148, 75088, 86336, 102524, 140296, 150176, 205048, 280592, 300352, 333203, 410096, 561184, 666406, 820192, 1122368, 1332812, 1640384, 2665624, 5331248, 10662496, 21324992]

約数ペア:

[(1, 21324992), (2, 10662496), (4, 5331248), (8, 2665624), (13, 1640384), (16, 1332812), (19, 1122368), (26, 820192), (32, 666406), (38, 561184), (52, 410096), (64, 333203), (71, 300352), (76, 280592), (104, 205048), (142, 150176), (152, 140296), (208, 102524), (247, 86336), (284, 75088), (304, 70148), (361, 59072), (416, 51262), (494, 43168), (568, 37544), (608, 35074), (722, 29536), (832, 25631), (923, 23104), (988, 21584), (1136, 18772), (1216, 17537), (1349, 15808), (1444, 14768), (1846, 11552), (1976, 10792), (2272, 9386), (2698, 7904), (2888, 7384), (3692, 5776), (3952, 5396), (4544, 4693)]