20854458

素因数分解:

$2^1\times 3^2\times {\mathrm{37}}^1\times {\mathrm{173}}^1\times {\mathrm{181}}^1$

素因数の和:399

約数の個数: 48

約数和(自身を含む): 46931976

約数和(自身を除く): 26077518

約数列:

[1, 2, 3, 6, 9, 18, 37, 74, 111, 173, 181, 222, 333, 346, 362, 519, 543, 666, 1038, 1086, 1557, 1629, 3114, 3258, 6401, 6697, 12802, 13394, 19203, 20091, 31313, 38406, 40182, 57609, 60273, 62626, 93939, 115218, 120546, 187878, 281817, 563634, 1158581, 2317162, 3475743, 6951486, 10427229, 20854458]

約数ペア:

[(1, 20854458), (2, 10427229), (3, 6951486), (6, 3475743), (9, 2317162), (18, 1158581), (37, 563634), (74, 281817), (111, 187878), (173, 120546), (181, 115218), (222, 93939), (333, 62626), (346, 60273), (362, 57609), (519, 40182), (543, 38406), (666, 31313), (1038, 20091), (1086, 19203), (1557, 13394), (1629, 12802), (3114, 6697), (3258, 6401)]