21749104

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{3373}}^1$

素因数の和:3425

約数の個数: 40

約数和(自身を含む): 46858112

約数和(自身を除く): 25109008

約数列:

[1, 2, 4, 8, 13, 16, 26, 31, 52, 62, 104, 124, 208, 248, 403, 496, 806, 1612, 3224, 3373, 6448, 6746, 13492, 26984, 43849, 53968, 87698, 104563, 175396, 209126, 350792, 418252, 701584, 836504, 1359319, 1673008, 2718638, 5437276, 10874552, 21749104]

約数ペア:

[(1, 21749104), (2, 10874552), (4, 5437276), (8, 2718638), (13, 1673008), (16, 1359319), (26, 836504), (31, 701584), (52, 418252), (62, 350792), (104, 209126), (124, 175396), (208, 104563), (248, 87698), (403, 53968), (496, 43849), (806, 26984), (1612, 13492), (3224, 6746), (3373, 6448)]