21797008

素因数分解:

$2^4\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{971}}^1$

素因数の和:1063

約数の個数: 40

約数和(自身を含む): 44836416

約数和(自身を除く): 23039408

約数列:

[1, 2, 4, 8, 16, 23, 46, 61, 92, 122, 184, 244, 368, 488, 971, 976, 1403, 1942, 2806, 3884, 5612, 7768, 11224, 15536, 22333, 22448, 44666, 59231, 89332, 118462, 178664, 236924, 357328, 473848, 947696, 1362313, 2724626, 5449252, 10898504, 21797008]

約数ペア:

[(1, 21797008), (2, 10898504), (4, 5449252), (8, 2724626), (16, 1362313), (23, 947696), (46, 473848), (61, 357328), (92, 236924), (122, 178664), (184, 118462), (244, 89332), (368, 59231), (488, 44666), (971, 22448), (976, 22333), (1403, 15536), (1942, 11224), (2806, 7768), (3884, 5612)]