21473816

素因数分解:

$2^3\times 7^1\times {\mathrm{13}}^2\times {\mathrm{2269}}^1$

素因数の和:2308

約数の個数: 48

約数和(自身を含む): 49849200

約数和(自身を除く): 28375384

約数列:

[1, 2, 4, 7, 8, 13, 14, 26, 28, 52, 56, 91, 104, 169, 182, 338, 364, 676, 728, 1183, 1352, 2269, 2366, 4538, 4732, 9076, 9464, 15883, 18152, 29497, 31766, 58994, 63532, 117988, 127064, 206479, 235976, 383461, 412958, 766922, 825916, 1533844, 1651832, 2684227, 3067688, 5368454, 10736908, 21473816]

約数ペア:

[(1, 21473816), (2, 10736908), (4, 5368454), (7, 3067688), (8, 2684227), (13, 1651832), (14, 1533844), (26, 825916), (28, 766922), (52, 412958), (56, 383461), (91, 235976), (104, 206479), (169, 127064), (182, 117988), (338, 63532), (364, 58994), (676, 31766), (728, 29497), (1183, 18152), (1352, 15883), (2269, 9464), (2366, 9076), (4538, 4732)]