19511408

素因数分解:

$2^4\times 7^2\times {\mathrm{41}}^1\times {\mathrm{607}}^1$

素因数の和:670

約数の個数: 60

約数和(自身を含む): 45122112

約数和(自身を除く): 25610704

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 41, 49, 56, 82, 98, 112, 164, 196, 287, 328, 392, 574, 607, 656, 784, 1148, 1214, 2009, 2296, 2428, 4018, 4249, 4592, 4856, 8036, 8498, 9712, 16072, 16996, 24887, 29743, 32144, 33992, 49774, 59486, 67984, 99548, 118972, 174209, 199096, 237944, 348418, 398192, 475888, 696836, 1219463, 1393672, 2438926, 2787344, 4877852, 9755704, 19511408]

約数ペア:

[(1, 19511408), (2, 9755704), (4, 4877852), (7, 2787344), (8, 2438926), (14, 1393672), (16, 1219463), (28, 696836), (41, 475888), (49, 398192), (56, 348418), (82, 237944), (98, 199096), (112, 174209), (164, 118972), (196, 99548), (287, 67984), (328, 59486), (392, 49774), (574, 33992), (607, 32144), (656, 29743), (784, 24887), (1148, 16996), (1214, 16072), (2009, 9712), (2296, 8498), (2428, 8036), (4018, 4856), (4249, 4592)]