21323168

素因数分解:

$2^5\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{2063}}^1$

素因数の和:2109

約数の個数: 48

約数和(自身を含む): 46811520

約数和(自身を除く): 25488352

約数列:

[1, 2, 4, 8, 16, 17, 19, 32, 34, 38, 68, 76, 136, 152, 272, 304, 323, 544, 608, 646, 1292, 2063, 2584, 4126, 5168, 8252, 10336, 16504, 33008, 35071, 39197, 66016, 70142, 78394, 140284, 156788, 280568, 313576, 561136, 627152, 666349, 1122272, 1254304, 1332698, 2665396, 5330792, 10661584, 21323168]

約数ペア:

[(1, 21323168), (2, 10661584), (4, 5330792), (8, 2665396), (16, 1332698), (17, 1254304), (19, 1122272), (32, 666349), (34, 627152), (38, 561136), (68, 313576), (76, 280568), (136, 156788), (152, 140284), (272, 78394), (304, 70142), (323, 66016), (544, 39197), (608, 35071), (646, 33008), (1292, 16504), (2063, 10336), (2584, 8252), (4126, 5168)]