21205824003

素因数分解:

$3^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{8630779}}^1$

素因数の和:8630808

約数の個数: 32

約数和(自身を含む): 38665894400

約数和(自身を除く): 17460070397

約数列:

[1, 3, 7, 9, 13, 21, 27, 39, 63, 91, 117, 189, 273, 351, 819, 2457, 8630779, 25892337, 60415453, 77677011, 112200127, 181246359, 233031033, 336600381, 543739077, 785400889, 1009801143, 1631217231, 2356202667, 3029403429, 7068608001, 21205824003]

約数ペア:

[(1, 21205824003), (3, 7068608001), (7, 3029403429), (9, 2356202667), (13, 1631217231), (21, 1009801143), (27, 785400889), (39, 543739077), (63, 336600381), (91, 233031033), (117, 181246359), (189, 112200127), (273, 77677011), (351, 60415453), (819, 25892337), (2457, 8630779)]