7985817

素因数分解:

$3^3\times 7^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1$

素因数の和:123

約数の個数: 64

約数和(自身を含む): 14745600

約数和(自身を除く): 6759783

約数列:

[1, 3, 7, 9, 21, 27, 29, 31, 47, 63, 87, 93, 141, 189, 203, 217, 261, 279, 329, 423, 609, 651, 783, 837, 899, 987, 1269, 1363, 1457, 1827, 1953, 2697, 2961, 4089, 4371, 5481, 5859, 6293, 8091, 8883, 9541, 10199, 12267, 13113, 18879, 24273, 28623, 30597, 36801, 39339, 42253, 56637, 85869, 91791, 126759, 169911, 257607, 275373, 295771, 380277, 887313, 1140831, 2661939, 7985817]

約数ペア:

[(1, 7985817), (3, 2661939), (7, 1140831), (9, 887313), (21, 380277), (27, 295771), (29, 275373), (31, 257607), (47, 169911), (63, 126759), (87, 91791), (93, 85869), (141, 56637), (189, 42253), (203, 39339), (217, 36801), (261, 30597), (279, 28623), (329, 24273), (423, 18879), (609, 13113), (651, 12267), (783, 10199), (837, 9541), (899, 8883), (987, 8091), (1269, 6293), (1363, 5859), (1457, 5481), (1827, 4371), (1953, 4089), (2697, 2961)]