19530736

素因数分解:

$2^4\times {\mathrm{61}}^1\times {\mathrm{20011}}^1$

素因数の和:20080

約数の個数: 20

約数和(自身を含む): 38463064

約数和(自身を除く): 18932328

約数列:

[1, 2, 4, 8, 16, 61, 122, 244, 488, 976, 20011, 40022, 80044, 160088, 320176, 1220671, 2441342, 4882684, 9765368, 19530736]

約数ペア:

[(1, 19530736), (2, 9765368), (4, 4882684), (8, 2441342), (16, 1220671), (61, 320176), (122, 160088), (244, 80044), (488, 40022), (976, 20011)]