20408922

素因数分解:

$2^1\times 3^4\times {\mathrm{53}}^1\times {\mathrm{2377}}^1$

素因数の和:2444

約数の個数: 40

約数和(自身を含む): 46613556

約数和(自身を除く): 26204634

約数列:

[1, 2, 3, 6, 9, 18, 27, 53, 54, 81, 106, 159, 162, 318, 477, 954, 1431, 2377, 2862, 4293, 4754, 7131, 8586, 14262, 21393, 42786, 64179, 125981, 128358, 192537, 251962, 377943, 385074, 755886, 1133829, 2267658, 3401487, 6802974, 10204461, 20408922]

約数ペア:

[(1, 20408922), (2, 10204461), (3, 6802974), (6, 3401487), (9, 2267658), (18, 1133829), (27, 755886), (53, 385074), (54, 377943), (81, 251962), (106, 192537), (159, 128358), (162, 125981), (318, 64179), (477, 42786), (954, 21393), (1431, 14262), (2377, 8586), (2862, 7131), (4293, 4754)]