20398095

素因数分解:

$3^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{2477}}^1$

素因数の和:2552

約数の個数: 32

約数和(自身を含む): 36872640

約数和(自身を除く): 16474545

約数列:

[1, 3, 5, 9, 15, 27, 45, 61, 135, 183, 305, 549, 915, 1647, 2477, 2745, 7431, 8235, 12385, 22293, 37155, 66879, 111465, 151097, 334395, 453291, 755485, 1359873, 2266455, 4079619, 6799365, 20398095]

約数ペア:

[(1, 20398095), (3, 6799365), (5, 4079619), (9, 2266455), (15, 1359873), (27, 755485), (45, 453291), (61, 334395), (135, 151097), (183, 111465), (305, 66879), (549, 37155), (915, 22293), (1647, 12385), (2477, 8235), (2745, 7431)]