21738128

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{3109}}^1$

素因数の和:3159

約数の個数: 40

約数和(自身を含む): 46276800

約数和(自身を除く): 24538672

約数列:

[1, 2, 4, 8, 16, 19, 23, 38, 46, 76, 92, 152, 184, 304, 368, 437, 874, 1748, 3109, 3496, 6218, 6992, 12436, 24872, 49744, 59071, 71507, 118142, 143014, 236284, 286028, 472568, 572056, 945136, 1144112, 1358633, 2717266, 5434532, 10869064, 21738128]

約数ペア:

[(1, 21738128), (2, 10869064), (4, 5434532), (8, 2717266), (16, 1358633), (19, 1144112), (23, 945136), (38, 572056), (46, 472568), (76, 286028), (92, 236284), (152, 143014), (184, 118142), (304, 71507), (368, 59071), (437, 49744), (874, 24872), (1748, 12436), (3109, 6992), (3496, 6218)]