21447195

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{599}}^1$

素因数の和:656

約数の個数: 64

約数和(自身を含む): 44236800

約数和(自身を除く): 22789605

約数列:

[1, 3, 5, 7, 11, 15, 21, 31, 33, 35, 55, 77, 93, 105, 155, 165, 217, 231, 341, 385, 465, 599, 651, 1023, 1085, 1155, 1705, 1797, 2387, 2995, 3255, 4193, 5115, 6589, 7161, 8985, 11935, 12579, 18569, 19767, 20965, 32945, 35805, 46123, 55707, 62895, 92845, 98835, 129983, 138369, 204259, 230615, 278535, 389949, 612777, 649915, 691845, 1021295, 1429813, 1949745, 3063885, 4289439, 7149065, 21447195]

約数ペア:

[(1, 21447195), (3, 7149065), (5, 4289439), (7, 3063885), (11, 1949745), (15, 1429813), (21, 1021295), (31, 691845), (33, 649915), (35, 612777), (55, 389949), (77, 278535), (93, 230615), (105, 204259), (155, 138369), (165, 129983), (217, 98835), (231, 92845), (341, 62895), (385, 55707), (465, 46123), (599, 35805), (651, 32945), (1023, 20965), (1085, 19767), (1155, 18569), (1705, 12579), (1797, 11935), (2387, 8985), (2995, 7161), (3255, 6589), (4193, 5115)]