21388110

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{157}}^1\times {\mathrm{239}}^1$

素因数の和:425

約数の個数: 64

約数和(自身を含む): 54604800

約数和(自身を除く): 33216690

約数列:

[1, 2, 3, 5, 6, 10, 15, 19, 30, 38, 57, 95, 114, 157, 190, 239, 285, 314, 471, 478, 570, 717, 785, 942, 1195, 1434, 1570, 2355, 2390, 2983, 3585, 4541, 4710, 5966, 7170, 8949, 9082, 13623, 14915, 17898, 22705, 27246, 29830, 37523, 44745, 45410, 68115, 75046, 89490, 112569, 136230, 187615, 225138, 375230, 562845, 712937, 1125690, 1425874, 2138811, 3564685, 4277622, 7129370, 10694055, 21388110]

約数ペア:

[(1, 21388110), (2, 10694055), (3, 7129370), (5, 4277622), (6, 3564685), (10, 2138811), (15, 1425874), (19, 1125690), (30, 712937), (38, 562845), (57, 375230), (95, 225138), (114, 187615), (157, 136230), (190, 112569), (239, 89490), (285, 75046), (314, 68115), (471, 45410), (478, 44745), (570, 37523), (717, 29830), (785, 27246), (942, 22705), (1195, 17898), (1434, 14915), (1570, 13623), (2355, 9082), (2390, 8949), (2983, 7170), (3585, 5966), (4541, 4710)]