20803734

素因数分解:

$2^1\times 3^2\times 7^2\times {\mathrm{103}}^1\times {\mathrm{229}}^1$

素因数の和:354

約数の個数: 72

約数和(自身を含む): 53174160

約数和(自身を除く): 32370426

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 49, 63, 98, 103, 126, 147, 206, 229, 294, 309, 441, 458, 618, 687, 721, 882, 927, 1374, 1442, 1603, 1854, 2061, 2163, 3206, 4122, 4326, 4809, 5047, 6489, 9618, 10094, 11221, 12978, 14427, 15141, 22442, 23587, 28854, 30282, 33663, 45423, 47174, 67326, 70761, 90846, 100989, 141522, 165109, 201978, 212283, 330218, 424566, 495327, 990654, 1155763, 1485981, 2311526, 2971962, 3467289, 6934578, 10401867, 20803734]

約数ペア:

[(1, 20803734), (2, 10401867), (3, 6934578), (6, 3467289), (7, 2971962), (9, 2311526), (14, 1485981), (18, 1155763), (21, 990654), (42, 495327), (49, 424566), (63, 330218), (98, 212283), (103, 201978), (126, 165109), (147, 141522), (206, 100989), (229, 90846), (294, 70761), (309, 67326), (441, 47174), (458, 45423), (618, 33663), (687, 30282), (721, 28854), (882, 23587), (927, 22442), (1374, 15141), (1442, 14427), (1603, 12978), (1854, 11221), (2061, 10094), (2163, 9618), (3206, 6489), (4122, 5047), (4326, 4809)]