27281565

素因数分解:

$3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{613}}^1$

素因数の和:690

約数の個数: 48

約数和(自身を含む): 50573952

約数和(自身を除く): 23292387

約数列:

[1, 3, 5, 9, 15, 23, 43, 45, 69, 115, 129, 207, 215, 345, 387, 613, 645, 989, 1035, 1839, 1935, 2967, 3065, 4945, 5517, 8901, 9195, 14099, 14835, 26359, 27585, 42297, 44505, 70495, 79077, 126891, 131795, 211485, 237231, 395385, 606257, 634455, 1186155, 1818771, 3031285, 5456313, 9093855, 27281565]

約数ペア:

[(1, 27281565), (3, 9093855), (5, 5456313), (9, 3031285), (15, 1818771), (23, 1186155), (43, 634455), (45, 606257), (69, 395385), (115, 237231), (129, 211485), (207, 131795), (215, 126891), (345, 79077), (387, 70495), (613, 44505), (645, 42297), (989, 27585), (1035, 26359), (1839, 14835), (1935, 14099), (2967, 9195), (3065, 8901), (4945, 5517)]