20185581654

素因数分解:

$2^1\times 3^2\times 7^2\times {\mathrm{1103}}^1\times {\mathrm{20749}}^1$

素因数の和:21874

約数の個数: 72

約数和(自身を含む): 50924484000

約数和(自身を除く): 30738902346

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 49, 63, 98, 126, 147, 294, 441, 882, 1103, 2206, 3309, 6618, 7721, 9927, 15442, 19854, 20749, 23163, 41498, 46326, 54047, 62247, 69489, 108094, 124494, 138978, 145243, 162141, 186741, 290486, 324282, 373482, 435729, 486423, 871458, 972846, 1016701, 1307187, 2033402, 2614374, 3050103, 6100206, 9150309, 18300618, 22886147, 45772294, 68658441, 137316882, 160203029, 205975323, 320406058, 411950646, 480609087, 961218174, 1121421203, 1441827261, 2242842406, 2883654522, 3364263609, 6728527218, 10092790827, 20185581654]

約数ペア:

[(1, 20185581654), (2, 10092790827), (3, 6728527218), (6, 3364263609), (7, 2883654522), (9, 2242842406), (14, 1441827261), (18, 1121421203), (21, 961218174), (42, 480609087), (49, 411950646), (63, 320406058), (98, 205975323), (126, 160203029), (147, 137316882), (294, 68658441), (441, 45772294), (882, 22886147), (1103, 18300618), (2206, 9150309), (3309, 6100206), (6618, 3050103), (7721, 2614374), (9927, 2033402), (15442, 1307187), (19854, 1016701), (20749, 972846), (23163, 871458), (41498, 486423), (46326, 435729), (54047, 373482), (62247, 324282), (69489, 290486), (108094, 186741), (124494, 162141), (138978, 145243)]