21086865152

素因数分解:

$2^8\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{188491}}^1$

素因数の和:188549

約数の個数: 72

約数和(自身を含む): 46233317760

約数和(自身を除く): 25146452608

約数列:

[1, 2, 4, 8, 16, 19, 23, 32, 38, 46, 64, 76, 92, 128, 152, 184, 256, 304, 368, 437, 608, 736, 874, 1216, 1472, 1748, 2432, 2944, 3496, 4864, 5888, 6992, 13984, 27968, 55936, 111872, 188491, 376982, 753964, 1507928, 3015856, 3581329, 4335293, 6031712, 7162658, 8670586, 12063424, 14325316, 17341172, 24126848, 28650632, 34682344, 48253696, 57301264, 69364688, 82370567, 114602528, 138729376, 164741134, 229205056, 277458752, 329482268, 458410112, 554917504, 658964536, 916820224, 1109835008, 1317929072, 2635858144, 5271716288, 10543432576, 21086865152]

約数ペア:

[(1, 21086865152), (2, 10543432576), (4, 5271716288), (8, 2635858144), (16, 1317929072), (19, 1109835008), (23, 916820224), (32, 658964536), (38, 554917504), (46, 458410112), (64, 329482268), (76, 277458752), (92, 229205056), (128, 164741134), (152, 138729376), (184, 114602528), (256, 82370567), (304, 69364688), (368, 57301264), (437, 48253696), (608, 34682344), (736, 28650632), (874, 24126848), (1216, 17341172), (1472, 14325316), (1748, 12063424), (2432, 8670586), (2944, 7162658), (3496, 6031712), (4864, 4335293), (5888, 3581329), (6992, 3015856), (13984, 1507928), (27968, 753964), (55936, 376982), (111872, 188491)]