21221935956004

素因数分解:

$2^2\times 7^2\times {\mathrm{227}}^1\times {\mathrm{643}}^1\times {\mathrm{741809}}^1$

素因数の和:742697

約数の個数: 72

約数和(自身を含む): 43459656922080

約数和(自身を除く): 22237720966076

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 227, 454, 643, 908, 1286, 1589, 2572, 3178, 4501, 6356, 9002, 11123, 18004, 22246, 31507, 44492, 63014, 126028, 145961, 291922, 583844, 741809, 1021727, 1483618, 2043454, 2967236, 4086908, 5192663, 7152089, 10385326, 14304178, 20770652, 28608356, 36348641, 72697282, 145394564, 168390643, 336781286, 476983187, 673562572, 953966374, 1178734501, 1907932748, 2357469002, 3338882309, 4714938004, 6677764618, 8251141507, 13355529236, 16502283014, 23372176163, 33004566028, 46744352326, 93488704652, 108275183449, 216550366898, 433100733796, 757926284143, 1515852568286, 3031705136572, 5305483989001, 10610967978002, 21221935956004]

約数ペア:

[(1, 21221935956004), (2, 10610967978002), (4, 5305483989001), (7, 3031705136572), (14, 1515852568286), (28, 757926284143), (49, 433100733796), (98, 216550366898), (196, 108275183449), (227, 93488704652), (454, 46744352326), (643, 33004566028), (908, 23372176163), (1286, 16502283014), (1589, 13355529236), (2572, 8251141507), (3178, 6677764618), (4501, 4714938004), (6356, 3338882309), (9002, 2357469002), (11123, 1907932748), (18004, 1178734501), (22246, 953966374), (31507, 673562572), (44492, 476983187), (63014, 336781286), (126028, 168390643), (145961, 145394564), (291922, 72697282), (583844, 36348641), (741809, 28608356), (1021727, 20770652), (1483618, 14304178), (2043454, 10385326), (2967236, 7152089), (4086908, 5192663)]