19479978

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{103}}^1$

素因数の和:216

約数の個数: 96

約数和(自身を含む): 51916800

約数和(自身を除く): 32436822

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 19, 21, 38, 42, 57, 63, 79, 103, 114, 126, 133, 158, 171, 206, 237, 266, 309, 342, 399, 474, 553, 618, 711, 721, 798, 927, 1106, 1197, 1422, 1442, 1501, 1659, 1854, 1957, 2163, 2394, 3002, 3318, 3914, 4326, 4503, 4977, 5871, 6489, 8137, 9006, 9954, 10507, 11742, 12978, 13509, 13699, 16274, 17613, 21014, 24411, 27018, 27398, 31521, 35226, 41097, 48822, 56959, 63042, 73233, 82194, 94563, 113918, 123291, 146466, 154603, 170877, 189126, 246582, 309206, 341754, 463809, 512631, 927618, 1025262, 1082221, 1391427, 2164442, 2782854, 3246663, 6493326, 9739989, 19479978]

約数ペア:

[(1, 19479978), (2, 9739989), (3, 6493326), (6, 3246663), (7, 2782854), (9, 2164442), (14, 1391427), (18, 1082221), (19, 1025262), (21, 927618), (38, 512631), (42, 463809), (57, 341754), (63, 309206), (79, 246582), (103, 189126), (114, 170877), (126, 154603), (133, 146466), (158, 123291), (171, 113918), (206, 94563), (237, 82194), (266, 73233), (309, 63042), (342, 56959), (399, 48822), (474, 41097), (553, 35226), (618, 31521), (711, 27398), (721, 27018), (798, 24411), (927, 21014), (1106, 17613), (1197, 16274), (1422, 13699), (1442, 13509), (1501, 12978), (1659, 11742), (1854, 10507), (1957, 9954), (2163, 9006), (2394, 8137), (3002, 6489), (3318, 5871), (3914, 4977), (4326, 4503)]