19021540

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{23197}}^1$

素因数の和:23247

約数の個数: 24

約数和(自身を含む): 40921272

約数和(自身を除く): 21899732

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 23197, 46394, 92788, 115985, 231970, 463940, 951077, 1902154, 3804308, 4755385, 9510770, 19021540]

約数ペア:

[(1, 19021540), (2, 9510770), (4, 4755385), (5, 3804308), (10, 1902154), (20, 951077), (41, 463940), (82, 231970), (164, 115985), (205, 92788), (410, 46394), (820, 23197)]