642916813

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^2\times {\mathrm{101}}^1\times {\mathrm{229}}^1$

素因数の和:386

約数の個数: 48

約数和(自身を含む): 858072960

約数和(自身を除く): 215156147

約数列:

[1, 7, 11, 19, 77, 101, 133, 209, 229, 361, 707, 1111, 1463, 1603, 1919, 2519, 2527, 3971, 4351, 7777, 13433, 17633, 21109, 23129, 27797, 30457, 36461, 47861, 82669, 147763, 161903, 254419, 255227, 335027, 401071, 439451, 578683, 909359, 1780933, 2807497, 3076157, 4833961, 6365513, 8349569, 33837727, 58446983, 91845259, 642916813]

約数ペア:

[(1, 642916813), (7, 91845259), (11, 58446983), (19, 33837727), (77, 8349569), (101, 6365513), (133, 4833961), (209, 3076157), (229, 2807497), (361, 1780933), (707, 909359), (1111, 578683), (1463, 439451), (1603, 401071), (1919, 335027), (2519, 255227), (2527, 254419), (3971, 161903), (4351, 147763), (7777, 82669), (13433, 47861), (17633, 36461), (21109, 30457), (23129, 27797)]