20935264

素因数分解:

$2^5\times 7^1\times {\mathrm{19}}^1\times {\mathrm{4919}}^1$

素因数の和:4955

約数の個数: 48

約数和(自身を含む): 49593600

約数和(自身を除く): 28658336

約数列:

[1, 2, 4, 7, 8, 14, 16, 19, 28, 32, 38, 56, 76, 112, 133, 152, 224, 266, 304, 532, 608, 1064, 2128, 4256, 4919, 9838, 19676, 34433, 39352, 68866, 78704, 93461, 137732, 157408, 186922, 275464, 373844, 550928, 654227, 747688, 1101856, 1308454, 1495376, 2616908, 2990752, 5233816, 10467632, 20935264]

約数ペア:

[(1, 20935264), (2, 10467632), (4, 5233816), (7, 2990752), (8, 2616908), (14, 1495376), (16, 1308454), (19, 1101856), (28, 747688), (32, 654227), (38, 550928), (56, 373844), (76, 275464), (112, 186922), (133, 157408), (152, 137732), (224, 93461), (266, 78704), (304, 68866), (532, 39352), (608, 34433), (1064, 19676), (2128, 9838), (4256, 4919)]