21176870

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{251}}^1$

素因数の和:341

約数の個数: 64

約数和(自身を含む): 45722880

約数和(自身を除く): 24546010

約数列:

[1, 2, 5, 10, 11, 13, 22, 26, 55, 59, 65, 110, 118, 130, 143, 251, 286, 295, 502, 590, 649, 715, 767, 1255, 1298, 1430, 1534, 2510, 2761, 3245, 3263, 3835, 5522, 6490, 6526, 7670, 8437, 13805, 14809, 16315, 16874, 27610, 29618, 32630, 35893, 42185, 71786, 74045, 84370, 148090, 162899, 179465, 192517, 325798, 358930, 385034, 814495, 962585, 1628990, 1925170, 2117687, 4235374, 10588435, 21176870]

約数ペア:

[(1, 21176870), (2, 10588435), (5, 4235374), (10, 2117687), (11, 1925170), (13, 1628990), (22, 962585), (26, 814495), (55, 385034), (59, 358930), (65, 325798), (110, 192517), (118, 179465), (130, 162899), (143, 148090), (251, 84370), (286, 74045), (295, 71786), (502, 42185), (590, 35893), (649, 32630), (715, 29618), (767, 27610), (1255, 16874), (1298, 16315), (1430, 14809), (1534, 13805), (2510, 8437), (2761, 7670), (3245, 6526), (3263, 6490), (3835, 5522)]