21689010

素因数分解:

$2^1\times 3^2\times 5^1\times 7^1\times {\mathrm{173}}^1\times {\mathrm{199}}^1$

素因数の和:392

約数の個数: 96

約数和(自身を含む): 65145600

約数和(自身を除く): 43456590

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 30, 35, 42, 45, 63, 70, 90, 105, 126, 173, 199, 210, 315, 346, 398, 519, 597, 630, 865, 995, 1038, 1194, 1211, 1393, 1557, 1730, 1791, 1990, 2422, 2595, 2786, 2985, 3114, 3582, 3633, 4179, 5190, 5970, 6055, 6965, 7266, 7785, 8358, 8955, 10899, 12110, 12537, 13930, 15570, 17910, 18165, 20895, 21798, 25074, 34427, 36330, 41790, 54495, 62685, 68854, 103281, 108990, 125370, 172135, 206562, 240989, 309843, 344270, 481978, 516405, 619686, 722967, 1032810, 1204945, 1445934, 1549215, 2168901, 2409890, 3098430, 3614835, 4337802, 7229670, 10844505, 21689010]

約数ペア:

[(1, 21689010), (2, 10844505), (3, 7229670), (5, 4337802), (6, 3614835), (7, 3098430), (9, 2409890), (10, 2168901), (14, 1549215), (15, 1445934), (18, 1204945), (21, 1032810), (30, 722967), (35, 619686), (42, 516405), (45, 481978), (63, 344270), (70, 309843), (90, 240989), (105, 206562), (126, 172135), (173, 125370), (199, 108990), (210, 103281), (315, 68854), (346, 62685), (398, 54495), (519, 41790), (597, 36330), (630, 34427), (865, 25074), (995, 21798), (1038, 20895), (1194, 18165), (1211, 17910), (1393, 15570), (1557, 13930), (1730, 12537), (1791, 12110), (1990, 10899), (2422, 8955), (2595, 8358), (2786, 7785), (2985, 7266), (3114, 6965), (3582, 6055), (3633, 5970), (4179, 5190)]