21023889780

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{641}}^1\times {\mathrm{546643}}^1$

素因数の和:547296

約数の個数: 48

約数和(自身を含む): 58958835264

約数和(自身を除く): 37934945484

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 641, 1282, 1923, 2564, 3205, 3846, 6410, 7692, 9615, 12820, 19230, 38460, 546643, 1093286, 1639929, 2186572, 2733215, 3279858, 5466430, 6559716, 8199645, 10932860, 16399290, 32798580, 350398163, 700796326, 1051194489, 1401592652, 1751990815, 2102388978, 3503981630, 4204777956, 5255972445, 7007963260, 10511944890, 21023889780]

約数ペア:

[(1, 21023889780), (2, 10511944890), (3, 7007963260), (4, 5255972445), (5, 4204777956), (6, 3503981630), (10, 2102388978), (12, 1751990815), (15, 1401592652), (20, 1051194489), (30, 700796326), (60, 350398163), (641, 32798580), (1282, 16399290), (1923, 10932860), (2564, 8199645), (3205, 6559716), (3846, 5466430), (6410, 3279858), (7692, 2733215), (9615, 2186572), (12820, 1639929), (19230, 1093286), (38460, 546643)]