19438748

素因数分解:

$2^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{599}}^1$

素因数の和:690

約数の個数: 48

約数和(自身を含む): 41664000

約数和(自身を除く): 22225252

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 61, 76, 122, 133, 244, 266, 427, 532, 599, 854, 1159, 1198, 1708, 2318, 2396, 4193, 4636, 8113, 8386, 11381, 16226, 16772, 22762, 32452, 36539, 45524, 73078, 79667, 146156, 159334, 255773, 318668, 511546, 694241, 1023092, 1388482, 2776964, 4859687, 9719374, 19438748]

約数ペア:

[(1, 19438748), (2, 9719374), (4, 4859687), (7, 2776964), (14, 1388482), (19, 1023092), (28, 694241), (38, 511546), (61, 318668), (76, 255773), (122, 159334), (133, 146156), (244, 79667), (266, 73078), (427, 45524), (532, 36539), (599, 32452), (854, 22762), (1159, 16772), (1198, 16226), (1708, 11381), (2318, 8386), (2396, 8113), (4193, 4636)]