21891632

素因数分解:

$2^4\times 7^3\times {\mathrm{3989}}^1$

素因数の和:4018

約数の個数: 40

約数和(自身を含む): 49476000

約数和(自身を除く): 27584368

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 49, 56, 98, 112, 196, 343, 392, 686, 784, 1372, 2744, 3989, 5488, 7978, 15956, 27923, 31912, 55846, 63824, 111692, 195461, 223384, 390922, 446768, 781844, 1368227, 1563688, 2736454, 3127376, 5472908, 10945816, 21891632]

約数ペア:

[(1, 21891632), (2, 10945816), (4, 5472908), (7, 3127376), (8, 2736454), (14, 1563688), (16, 1368227), (28, 781844), (49, 446768), (56, 390922), (98, 223384), (112, 195461), (196, 111692), (343, 63824), (392, 55846), (686, 31912), (784, 27923), (1372, 15956), (2744, 7978), (3989, 5488)]