21587384

素因数分解:

$2^3\times 7^1\times {\mathrm{13}}^2\times {\mathrm{2281}}^1$

素因数の和:2320

約数の個数: 48

約数和(自身を含む): 50112720

約数和(自身を除く): 28525336

約数列:

[1, 2, 4, 7, 8, 13, 14, 26, 28, 52, 56, 91, 104, 169, 182, 338, 364, 676, 728, 1183, 1352, 2281, 2366, 4562, 4732, 9124, 9464, 15967, 18248, 29653, 31934, 59306, 63868, 118612, 127736, 207571, 237224, 385489, 415142, 770978, 830284, 1541956, 1660568, 2698423, 3083912, 5396846, 10793692, 21587384]

約数ペア:

[(1, 21587384), (2, 10793692), (4, 5396846), (7, 3083912), (8, 2698423), (13, 1660568), (14, 1541956), (26, 830284), (28, 770978), (52, 415142), (56, 385489), (91, 237224), (104, 207571), (169, 127736), (182, 118612), (338, 63868), (364, 59306), (676, 31934), (728, 29653), (1183, 18248), (1352, 15967), (2281, 9464), (2366, 9124), (4562, 4732)]