19928664196

素因数分解:

$2^2\times 7^1\times {\mathrm{53}}^1\times {\mathrm{191}}^1\times {\mathrm{70309}}^1$

素因数の和:70564

約数の個数: 48

約数和(自身を含む): 40822548480

約数和(自身を除く): 20893884284

約数列:

[1, 2, 4, 7, 14, 28, 53, 106, 191, 212, 371, 382, 742, 764, 1337, 1484, 2674, 5348, 10123, 20246, 40492, 70309, 70861, 140618, 141722, 281236, 283444, 492163, 984326, 1968652, 3726377, 7452754, 13429019, 14905508, 26084639, 26858038, 52169278, 53716076, 94003133, 104338556, 188006266, 376012532, 711738007, 1423476014, 2846952028, 4982166049, 9964332098, 19928664196]

約数ペア:

[(1, 19928664196), (2, 9964332098), (4, 4982166049), (7, 2846952028), (14, 1423476014), (28, 711738007), (53, 376012532), (106, 188006266), (191, 104338556), (212, 94003133), (371, 53716076), (382, 52169278), (742, 26858038), (764, 26084639), (1337, 14905508), (1484, 13429019), (2674, 7452754), (5348, 3726377), (10123, 1968652), (20246, 984326), (40492, 492163), (70309, 283444), (70861, 281236), (140618, 141722)]