18993968

素因数分解:

$2^4\times 7^3\times {\mathrm{3461}}^1$

素因数の和:3490

約数の個数: 40

約数和(自身を含む): 42928800

約数和(自身を除く): 23934832

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 49, 56, 98, 112, 196, 343, 392, 686, 784, 1372, 2744, 3461, 5488, 6922, 13844, 24227, 27688, 48454, 55376, 96908, 169589, 193816, 339178, 387632, 678356, 1187123, 1356712, 2374246, 2713424, 4748492, 9496984, 18993968]

約数ペア:

[(1, 18993968), (2, 9496984), (4, 4748492), (7, 2713424), (8, 2374246), (14, 1356712), (16, 1187123), (28, 678356), (49, 387632), (56, 339178), (98, 193816), (112, 169589), (196, 96908), (343, 55376), (392, 48454), (686, 27688), (784, 24227), (1372, 13844), (2744, 6922), (3461, 5488)]