21170380

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{233}}^1$

素因数の和:319

約数の個数: 96

約数和(自身を含む): 56609280

約数和(自身を除く): 35438900

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 59, 70, 77, 110, 118, 140, 154, 220, 233, 236, 295, 308, 385, 413, 466, 590, 649, 770, 826, 932, 1165, 1180, 1298, 1540, 1631, 1652, 2065, 2330, 2563, 2596, 3245, 3262, 4130, 4543, 4660, 5126, 6490, 6524, 8155, 8260, 9086, 10252, 12815, 12980, 13747, 16310, 17941, 18172, 22715, 25630, 27494, 32620, 35882, 45430, 51260, 54988, 68735, 71764, 89705, 90860, 96229, 137470, 151217, 179410, 192458, 274940, 302434, 358820, 384916, 481145, 604868, 756085, 962290, 1058519, 1512170, 1924580, 2117038, 3024340, 4234076, 5292595, 10585190, 21170380]

約数ペア:

[(1, 21170380), (2, 10585190), (4, 5292595), (5, 4234076), (7, 3024340), (10, 2117038), (11, 1924580), (14, 1512170), (20, 1058519), (22, 962290), (28, 756085), (35, 604868), (44, 481145), (55, 384916), (59, 358820), (70, 302434), (77, 274940), (110, 192458), (118, 179410), (140, 151217), (154, 137470), (220, 96229), (233, 90860), (236, 89705), (295, 71764), (308, 68735), (385, 54988), (413, 51260), (466, 45430), (590, 35882), (649, 32620), (770, 27494), (826, 25630), (932, 22715), (1165, 18172), (1180, 17941), (1298, 16310), (1540, 13747), (1631, 12980), (1652, 12815), (2065, 10252), (2330, 9086), (2563, 8260), (2596, 8155), (3245, 6524), (3262, 6490), (4130, 5126), (4543, 4660)]