21686200

素因数分解:

$2^3\times 5^2\times {\mathrm{29}}^1\times {\mathrm{3739}}^1$

素因数の和:3784

約数の個数: 48

約数和(自身を含む): 52173000

約数和(自身を除く): 30486800

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 29, 40, 50, 58, 100, 116, 145, 200, 232, 290, 580, 725, 1160, 1450, 2900, 3739, 5800, 7478, 14956, 18695, 29912, 37390, 74780, 93475, 108431, 149560, 186950, 216862, 373900, 433724, 542155, 747800, 867448, 1084310, 2168620, 2710775, 4337240, 5421550, 10843100, 21686200]

約数ペア:

[(1, 21686200), (2, 10843100), (4, 5421550), (5, 4337240), (8, 2710775), (10, 2168620), (20, 1084310), (25, 867448), (29, 747800), (40, 542155), (50, 433724), (58, 373900), (100, 216862), (116, 186950), (145, 149560), (200, 108431), (232, 93475), (290, 74780), (580, 37390), (725, 29912), (1160, 18695), (1450, 14956), (2900, 7478), (3739, 5800)]