20194538

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{107}}^1$

素因数の和:207

約数の個数: 64

約数和(自身を含む): 40497408

約数和(自身を除く): 20302870

約数列:

[1, 2, 7, 13, 14, 17, 26, 34, 61, 91, 107, 119, 122, 182, 214, 221, 238, 427, 442, 749, 793, 854, 1037, 1391, 1498, 1547, 1586, 1819, 2074, 2782, 3094, 3638, 5551, 6527, 7259, 9737, 11102, 12733, 13054, 13481, 14518, 19474, 23647, 25466, 26962, 45689, 47294, 84851, 91378, 94367, 110959, 165529, 169702, 188734, 221918, 331058, 593957, 776713, 1187914, 1442467, 1553426, 2884934, 10097269, 20194538]

約数ペア:

[(1, 20194538), (2, 10097269), (7, 2884934), (13, 1553426), (14, 1442467), (17, 1187914), (26, 776713), (34, 593957), (61, 331058), (91, 221918), (107, 188734), (119, 169702), (122, 165529), (182, 110959), (214, 94367), (221, 91378), (238, 84851), (427, 47294), (442, 45689), (749, 26962), (793, 25466), (854, 23647), (1037, 19474), (1391, 14518), (1498, 13481), (1547, 13054), (1586, 12733), (1819, 11102), (2074, 9737), (2782, 7259), (3094, 6527), (3638, 5551)]