201561687

素因数分解:

$3^2\times {\mathrm{29}}^1\times {\mathrm{71}}^1\times {\mathrm{73}}^1\times {\mathrm{149}}^1$

素因数の和:328

約数の個数: 48

約数和(自身を含む): 311688000

約数和(自身を除く): 110126313

約数列:

[1, 3, 9, 29, 71, 73, 87, 149, 213, 219, 261, 447, 639, 657, 1341, 2059, 2117, 4321, 5183, 6177, 6351, 10579, 10877, 12963, 15549, 18531, 19053, 31737, 32631, 38889, 46647, 95211, 97893, 150307, 306791, 315433, 450921, 772267, 920373, 946299, 1352763, 2316801, 2761119, 2838897, 6950403, 22395743, 67187229, 201561687]

約数ペア:

[(1, 201561687), (3, 67187229), (9, 22395743), (29, 6950403), (71, 2838897), (73, 2761119), (87, 2316801), (149, 1352763), (213, 946299), (219, 920373), (261, 772267), (447, 450921), (639, 315433), (657, 306791), (1341, 150307), (2059, 97893), (2117, 95211), (4321, 46647), (5183, 38889), (6177, 32631), (6351, 31737), (10579, 19053), (10877, 18531), (12963, 15549)]