19207955

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{103}}^1\times {\mathrm{151}}^1$

素因数の和:291

約数の個数: 32

約数和(自身を含む): 26557440

約数和(自身を除く): 7349485

約数列:

[1, 5, 13, 19, 65, 95, 103, 151, 247, 515, 755, 1235, 1339, 1957, 1963, 2869, 6695, 9785, 9815, 14345, 15553, 25441, 37297, 77765, 127205, 186485, 202189, 295507, 1010945, 1477535, 3841591, 19207955]

約数ペア:

[(1, 19207955), (5, 3841591), (13, 1477535), (19, 1010945), (65, 295507), (95, 202189), (103, 186485), (151, 127205), (247, 77765), (515, 37297), (755, 25441), (1235, 15553), (1339, 14345), (1957, 9815), (1963, 9785), (2869, 6695)]