21195200

素因数分解:

$2^6\times 5^2\times {\mathrm{13}}^1\times {\mathrm{1019}}^1$

素因数の和:1054

約数の個数: 84

約数和(自身を含む): 56220360

約数和(自身を除く): 35025160

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 32, 40, 50, 52, 64, 65, 80, 100, 104, 130, 160, 200, 208, 260, 320, 325, 400, 416, 520, 650, 800, 832, 1019, 1040, 1300, 1600, 2038, 2080, 2600, 4076, 4160, 5095, 5200, 8152, 10190, 10400, 13247, 16304, 20380, 20800, 25475, 26494, 32608, 40760, 50950, 52988, 65216, 66235, 81520, 101900, 105976, 132470, 163040, 203800, 211952, 264940, 326080, 331175, 407600, 423904, 529880, 662350, 815200, 847808, 1059760, 1324700, 1630400, 2119520, 2649400, 4239040, 5298800, 10597600, 21195200]

約数ペア:

[(1, 21195200), (2, 10597600), (4, 5298800), (5, 4239040), (8, 2649400), (10, 2119520), (13, 1630400), (16, 1324700), (20, 1059760), (25, 847808), (26, 815200), (32, 662350), (40, 529880), (50, 423904), (52, 407600), (64, 331175), (65, 326080), (80, 264940), (100, 211952), (104, 203800), (130, 163040), (160, 132470), (200, 105976), (208, 101900), (260, 81520), (320, 66235), (325, 65216), (400, 52988), (416, 50950), (520, 40760), (650, 32608), (800, 26494), (832, 25475), (1019, 20800), (1040, 20380), (1300, 16304), (1600, 13247), (2038, 10400), (2080, 10190), (2600, 8152), (4076, 5200), (4160, 5095)]