19113185

素因数分解:

$5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{353}}^1$

素因数の和:402

約数の個数: 48

約数和(自身を含む): 30509136

約数和(自身を除く): 11395951

約数列:

[1, 5, 7, 13, 17, 35, 49, 65, 85, 91, 119, 221, 245, 353, 455, 595, 637, 833, 1105, 1547, 1765, 2471, 3185, 4165, 4589, 6001, 7735, 10829, 12355, 17297, 22945, 30005, 32123, 42007, 54145, 78013, 86485, 160615, 210035, 224861, 294049, 390065, 546091, 1124305, 1470245, 2730455, 3822637, 19113185]

約数ペア:

[(1, 19113185), (5, 3822637), (7, 2730455), (13, 1470245), (17, 1124305), (35, 546091), (49, 390065), (65, 294049), (85, 224861), (91, 210035), (119, 160615), (221, 86485), (245, 78013), (353, 54145), (455, 42007), (595, 32123), (637, 30005), (833, 22945), (1105, 17297), (1547, 12355), (1765, 10829), (2471, 7735), (3185, 6001), (4165, 4589)]