21289214

素因数分解:

$2^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{229}}^1$

素因数の和:344

約数の個数: 32

約数和(自身を含む): 34974720

約数和(自身を除く): 13685506

約数列:

[1, 2, 23, 43, 46, 47, 86, 94, 229, 458, 989, 1081, 1978, 2021, 2162, 4042, 5267, 9847, 10534, 10763, 19694, 21526, 46483, 92966, 226481, 247549, 452962, 462809, 495098, 925618, 10644607, 21289214]

約数ペア:

[(1, 21289214), (2, 10644607), (23, 925618), (43, 495098), (46, 462809), (47, 452962), (86, 247549), (94, 226481), (229, 92966), (458, 46483), (989, 21526), (1081, 19694), (1978, 10763), (2021, 10534), (2162, 9847), (4042, 5267)]