20803172

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{101}}^1\times {\mathrm{233}}^1$

素因数の和:368

約数の個数: 48

約数和(自身を含む): 42103152

約数和(自身を除く): 21299980

約数列:

[1, 2, 4, 13, 17, 26, 34, 52, 68, 101, 202, 221, 233, 404, 442, 466, 884, 932, 1313, 1717, 2626, 3029, 3434, 3961, 5252, 6058, 6868, 7922, 12116, 15844, 22321, 23533, 44642, 47066, 51493, 89284, 94132, 102986, 205972, 305929, 400061, 611858, 800122, 1223716, 1600244, 5200793, 10401586, 20803172]

約数ペア:

[(1, 20803172), (2, 10401586), (4, 5200793), (13, 1600244), (17, 1223716), (26, 800122), (34, 611858), (52, 400061), (68, 305929), (101, 205972), (202, 102986), (221, 94132), (233, 89284), (404, 51493), (442, 47066), (466, 44642), (884, 23533), (932, 22321), (1313, 15844), (1717, 12116), (2626, 7922), (3029, 6868), (3434, 6058), (3961, 5252)]