21324016

素因数分解:

$2^4\times 7^2\times {\mathrm{59}}^1\times {\mathrm{461}}^1$

素因数の和:542

約数の個数: 60

約数和(自身を含む): 48981240

約数和(自身を除く): 27657224

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 49, 56, 59, 98, 112, 118, 196, 236, 392, 413, 461, 472, 784, 826, 922, 944, 1652, 1844, 2891, 3227, 3304, 3688, 5782, 6454, 6608, 7376, 11564, 12908, 22589, 23128, 25816, 27199, 45178, 46256, 51632, 54398, 90356, 108796, 180712, 190393, 217592, 361424, 380786, 435184, 761572, 1332751, 1523144, 2665502, 3046288, 5331004, 10662008, 21324016]

約数ペア:

[(1, 21324016), (2, 10662008), (4, 5331004), (7, 3046288), (8, 2665502), (14, 1523144), (16, 1332751), (28, 761572), (49, 435184), (56, 380786), (59, 361424), (98, 217592), (112, 190393), (118, 180712), (196, 108796), (236, 90356), (392, 54398), (413, 51632), (461, 46256), (472, 45178), (784, 27199), (826, 25816), (922, 23128), (944, 22589), (1652, 12908), (1844, 11564), (2891, 7376), (3227, 6608), (3304, 6454), (3688, 5782)]