20978352

素因数分解:

$2^4\times 3^4\times {\mathrm{16187}}^1$

素因数の和:16207

約数の個数: 50

約数和(自身を含む): 60721188

約数和(自身を除く): 39742836

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 27, 36, 48, 54, 72, 81, 108, 144, 162, 216, 324, 432, 648, 1296, 16187, 32374, 48561, 64748, 97122, 129496, 145683, 194244, 258992, 291366, 388488, 437049, 582732, 776976, 874098, 1165464, 1311147, 1748196, 2330928, 2622294, 3496392, 5244588, 6992784, 10489176, 20978352]

約数ペア:

[(1, 20978352), (2, 10489176), (3, 6992784), (4, 5244588), (6, 3496392), (8, 2622294), (9, 2330928), (12, 1748196), (16, 1311147), (18, 1165464), (24, 874098), (27, 776976), (36, 582732), (48, 437049), (54, 388488), (72, 291366), (81, 258992), (108, 194244), (144, 145683), (162, 129496), (216, 97122), (324, 64748), (432, 48561), (648, 32374), (1296, 16187)]