21433923

素因数分解:

$3^3\times 7^2\times {\mathrm{17}}^1\times {\mathrm{953}}^1$

素因数の和:993

約数の個数: 48

約数和(自身を含む): 39152160

約数和(自身を除く): 17718237

約数列:

[1, 3, 7, 9, 17, 21, 27, 49, 51, 63, 119, 147, 153, 189, 357, 441, 459, 833, 953, 1071, 1323, 2499, 2859, 3213, 6671, 7497, 8577, 16201, 20013, 22491, 25731, 46697, 48603, 60039, 113407, 140091, 145809, 180117, 340221, 420273, 437427, 793849, 1020663, 1260819, 2381547, 3061989, 7144641, 21433923]

約数ペア:

[(1, 21433923), (3, 7144641), (7, 3061989), (9, 2381547), (17, 1260819), (21, 1020663), (27, 793849), (49, 437427), (51, 420273), (63, 340221), (119, 180117), (147, 145809), (153, 140091), (189, 113407), (357, 60039), (441, 48603), (459, 46697), (833, 25731), (953, 22491), (1071, 20013), (1323, 16201), (2499, 8577), (2859, 7497), (3213, 6671)]