21427120

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{1873}}^1$

素因数の和:1910

約数の個数: 80

約数和(自身を含む): 58558752

約数和(自身を除く): 37131632

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 16, 20, 22, 26, 40, 44, 52, 55, 65, 80, 88, 104, 110, 130, 143, 176, 208, 220, 260, 286, 440, 520, 572, 715, 880, 1040, 1144, 1430, 1873, 2288, 2860, 3746, 5720, 7492, 9365, 11440, 14984, 18730, 20603, 24349, 29968, 37460, 41206, 48698, 74920, 82412, 97396, 103015, 121745, 149840, 164824, 194792, 206030, 243490, 267839, 329648, 389584, 412060, 486980, 535678, 824120, 973960, 1071356, 1339195, 1648240, 1947920, 2142712, 2678390, 4285424, 5356780, 10713560, 21427120]

約数ペア:

[(1, 21427120), (2, 10713560), (4, 5356780), (5, 4285424), (8, 2678390), (10, 2142712), (11, 1947920), (13, 1648240), (16, 1339195), (20, 1071356), (22, 973960), (26, 824120), (40, 535678), (44, 486980), (52, 412060), (55, 389584), (65, 329648), (80, 267839), (88, 243490), (104, 206030), (110, 194792), (130, 164824), (143, 149840), (176, 121745), (208, 103015), (220, 97396), (260, 82412), (286, 74920), (440, 48698), (520, 41206), (572, 37460), (715, 29968), (880, 24349), (1040, 20603), (1144, 18730), (1430, 14984), (1873, 11440), (2288, 9365), (2860, 7492), (3746, 5720)]