28478541

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{1429}}^1$

素因数の和:1525

約数の個数: 32

約数和(自身を含む): 47407360

約数和(自身を除く): 18928819

約数列:

[1, 3, 7, 13, 21, 39, 73, 91, 219, 273, 511, 949, 1429, 1533, 2847, 4287, 6643, 10003, 18577, 19929, 30009, 55731, 104317, 130039, 312951, 390117, 730219, 1356121, 2190657, 4068363, 9492847, 28478541]

約数ペア:

[(1, 28478541), (3, 9492847), (7, 4068363), (13, 2190657), (21, 1356121), (39, 730219), (73, 390117), (91, 312951), (219, 130039), (273, 104317), (511, 55731), (949, 30009), (1429, 19929), (1533, 18577), (2847, 10003), (4287, 6643)]