19564688

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{503}}^1$

素因数の和:552

約数の個数: 80

約数和(自身を含む): 47246976

約数和(自身を除く): 27682288

約数列:

[1, 2, 4, 8, 11, 13, 16, 17, 22, 26, 34, 44, 52, 68, 88, 104, 136, 143, 176, 187, 208, 221, 272, 286, 374, 442, 503, 572, 748, 884, 1006, 1144, 1496, 1768, 2012, 2288, 2431, 2992, 3536, 4024, 4862, 5533, 6539, 8048, 8551, 9724, 11066, 13078, 17102, 19448, 22132, 26156, 34204, 38896, 44264, 52312, 68408, 71929, 88528, 94061, 104624, 111163, 136816, 143858, 188122, 222326, 287716, 376244, 444652, 575432, 752488, 889304, 1150864, 1222793, 1504976, 1778608, 2445586, 4891172, 9782344, 19564688]

約数ペア:

[(1, 19564688), (2, 9782344), (4, 4891172), (8, 2445586), (11, 1778608), (13, 1504976), (16, 1222793), (17, 1150864), (22, 889304), (26, 752488), (34, 575432), (44, 444652), (52, 376244), (68, 287716), (88, 222326), (104, 188122), (136, 143858), (143, 136816), (176, 111163), (187, 104624), (208, 94061), (221, 88528), (272, 71929), (286, 68408), (374, 52312), (442, 44264), (503, 38896), (572, 34204), (748, 26156), (884, 22132), (1006, 19448), (1144, 17102), (1496, 13078), (1768, 11066), (2012, 9724), (2288, 8551), (2431, 8048), (2992, 6539), (3536, 5533), (4024, 4862)]