21053370

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{1459}}^1$

素因数の和:1519

約数の個数: 64

約数和(自身を含む): 55923840

約数和(自身を除く): 34870470

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 37, 39, 65, 74, 78, 111, 130, 185, 195, 222, 370, 390, 481, 555, 962, 1110, 1443, 1459, 2405, 2886, 2918, 4377, 4810, 7215, 7295, 8754, 14430, 14590, 18967, 21885, 37934, 43770, 53983, 56901, 94835, 107966, 113802, 161949, 189670, 269915, 284505, 323898, 539830, 569010, 701779, 809745, 1403558, 1619490, 2105337, 3508895, 4210674, 7017790, 10526685, 21053370]

約数ペア:

[(1, 21053370), (2, 10526685), (3, 7017790), (5, 4210674), (6, 3508895), (10, 2105337), (13, 1619490), (15, 1403558), (26, 809745), (30, 701779), (37, 569010), (39, 539830), (65, 323898), (74, 284505), (78, 269915), (111, 189670), (130, 161949), (185, 113802), (195, 107966), (222, 94835), (370, 56901), (390, 53983), (481, 43770), (555, 37934), (962, 21885), (1110, 18967), (1443, 14590), (1459, 14430), (2405, 8754), (2886, 7295), (2918, 7215), (4377, 4810)]