21351344

素因数分解:

$2^4\times 7^1\times {\mathrm{379}}^1\times {\mathrm{503}}^1$

素因数の和:897

約数の個数: 40

約数和(自身を含む): 47496960

約数和(自身を除く): 26145616

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 379, 503, 758, 1006, 1516, 2012, 2653, 3032, 3521, 4024, 5306, 6064, 7042, 8048, 10612, 14084, 21224, 28168, 42448, 56336, 190637, 381274, 762548, 1334459, 1525096, 2668918, 3050192, 5337836, 10675672, 21351344]

約数ペア:

[(1, 21351344), (2, 10675672), (4, 5337836), (7, 3050192), (8, 2668918), (14, 1525096), (16, 1334459), (28, 762548), (56, 381274), (112, 190637), (379, 56336), (503, 42448), (758, 28168), (1006, 21224), (1516, 14084), (2012, 10612), (2653, 8048), (3032, 7042), (3521, 6064), (4024, 5306)]