19608771

素因数分解:

$3^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{331}}^1$

素因数の和:392

約数の個数: 48

約数和(自身を含む): 33911808

約数和(自身を除く): 14303037

約数列:

[1, 3, 7, 13, 21, 31, 39, 49, 91, 93, 147, 217, 273, 331, 403, 637, 651, 993, 1209, 1519, 1911, 2317, 2821, 4303, 4557, 6951, 8463, 10261, 12909, 16219, 19747, 30121, 30783, 48657, 59241, 71827, 90363, 133393, 210847, 215481, 400179, 502789, 632541, 933751, 1508367, 2801253, 6536257, 19608771]

約数ペア:

[(1, 19608771), (3, 6536257), (7, 2801253), (13, 1508367), (21, 933751), (31, 632541), (39, 502789), (49, 400179), (91, 215481), (93, 210847), (147, 133393), (217, 90363), (273, 71827), (331, 59241), (403, 48657), (637, 30783), (651, 30121), (993, 19747), (1209, 16219), (1519, 12909), (1911, 10261), (2317, 8463), (2821, 6951), (4303, 4557)]