19813815

素因数分解:

$3^4\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{241}}^1$

素因数の和:294

約数の個数: 80

約数和(自身を含む): 42166080

約数和(自身を除く): 22352265

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 29, 35, 45, 63, 81, 87, 105, 135, 145, 189, 203, 241, 261, 315, 405, 435, 567, 609, 723, 783, 945, 1015, 1205, 1305, 1687, 1827, 2169, 2349, 2835, 3045, 3615, 3915, 5061, 5481, 6507, 6989, 8435, 9135, 10845, 11745, 15183, 16443, 19521, 20967, 25305, 27405, 32535, 34945, 45549, 48923, 62901, 75915, 82215, 97605, 104835, 136647, 146769, 188703, 227745, 244615, 314505, 440307, 566109, 683235, 733845, 943515, 1320921, 2201535, 2830545, 3962763, 6604605, 19813815]

約数ペア:

[(1, 19813815), (3, 6604605), (5, 3962763), (7, 2830545), (9, 2201535), (15, 1320921), (21, 943515), (27, 733845), (29, 683235), (35, 566109), (45, 440307), (63, 314505), (81, 244615), (87, 227745), (105, 188703), (135, 146769), (145, 136647), (189, 104835), (203, 97605), (241, 82215), (261, 75915), (315, 62901), (405, 48923), (435, 45549), (567, 34945), (609, 32535), (723, 27405), (783, 25305), (945, 20967), (1015, 19521), (1205, 16443), (1305, 15183), (1687, 11745), (1827, 10845), (2169, 9135), (2349, 8435), (2835, 6989), (3045, 6507), (3615, 5481), (3915, 5061)]