19267948

素因数分解:

$2^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{61}}^1\times {\mathrm{389}}^1$

素因数の和:490

約数の個数: 48

約数和(自身を含む): 40622400

約数和(自身を除く): 21354452

約数列:

[1, 2, 4, 7, 14, 28, 29, 58, 61, 116, 122, 203, 244, 389, 406, 427, 778, 812, 854, 1556, 1708, 1769, 2723, 3538, 5446, 7076, 10892, 11281, 12383, 22562, 23729, 24766, 45124, 47458, 49532, 78967, 94916, 157934, 166103, 315868, 332206, 664412, 688141, 1376282, 2752564, 4816987, 9633974, 19267948]

約数ペア:

[(1, 19267948), (2, 9633974), (4, 4816987), (7, 2752564), (14, 1376282), (28, 688141), (29, 664412), (58, 332206), (61, 315868), (116, 166103), (122, 157934), (203, 94916), (244, 78967), (389, 49532), (406, 47458), (427, 45124), (778, 24766), (812, 23729), (854, 22562), (1556, 12383), (1708, 11281), (1769, 10892), (2723, 7076), (3538, 5446)]