20507306

素因数分解:

$2^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{73}}^1\times {\mathrm{197}}^1$

素因数の和:326

約数の個数: 32

約数和(自身を含む): 33758208

約数和(自身を除く): 13250902

約数列:

[1, 2, 23, 31, 46, 62, 73, 146, 197, 394, 713, 1426, 1679, 2263, 3358, 4526, 4531, 6107, 9062, 12214, 14381, 28762, 52049, 104098, 140461, 280922, 330763, 445811, 661526, 891622, 10253653, 20507306]

約数ペア:

[(1, 20507306), (2, 10253653), (23, 891622), (31, 661526), (46, 445811), (62, 330763), (73, 280922), (146, 140461), (197, 104098), (394, 52049), (713, 28762), (1426, 14381), (1679, 12214), (2263, 9062), (3358, 6107), (4526, 4531)]