20047144

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{3637}}^1$

素因数の和:3709

約数の個数: 32

約数和(自身を含む): 41254920

約数和(自身を除く): 21207776

約数列:

[1, 2, 4, 8, 13, 26, 52, 53, 104, 106, 212, 424, 689, 1378, 2756, 3637, 5512, 7274, 14548, 29096, 47281, 94562, 189124, 192761, 378248, 385522, 771044, 1542088, 2505893, 5011786, 10023572, 20047144]

約数ペア:

[(1, 20047144), (2, 10023572), (4, 5011786), (8, 2505893), (13, 1542088), (26, 771044), (52, 385522), (53, 378248), (104, 192761), (106, 189124), (212, 94562), (424, 47281), (689, 29096), (1378, 14548), (2756, 7274), (3637, 5512)]