27912645

素因数分解:

$3^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{73}}^1\times {\mathrm{293}}^1$

素因数の和:406

約数の個数: 48

約数和(自身を含む): 50909040

約数和(自身を除く): 22996395

約数列:

[1, 3, 5, 9, 15, 29, 45, 73, 87, 145, 219, 261, 293, 365, 435, 657, 879, 1095, 1305, 1465, 2117, 2637, 3285, 4395, 6351, 8497, 10585, 13185, 19053, 21389, 25491, 31755, 42485, 64167, 76473, 95265, 106945, 127455, 192501, 320835, 382365, 620281, 962505, 1860843, 3101405, 5582529, 9304215, 27912645]

約数ペア:

[(1, 27912645), (3, 9304215), (5, 5582529), (9, 3101405), (15, 1860843), (29, 962505), (45, 620281), (73, 382365), (87, 320835), (145, 192501), (219, 127455), (261, 106945), (293, 95265), (365, 76473), (435, 64167), (657, 42485), (879, 31755), (1095, 25491), (1305, 21389), (1465, 19053), (2117, 13185), (2637, 10585), (3285, 8497), (4395, 6351)]