21862449

素因数分解:

$3^2\times 7^1\times {\mathrm{37}}^1\times {\mathrm{83}}^1\times {\mathrm{113}}^1$

素因数の和:246

約数の個数: 48

約数和(自身を含む): 37844352

約数和(自身を除く): 15981903

約数列:

[1, 3, 7, 9, 21, 37, 63, 83, 111, 113, 249, 259, 333, 339, 581, 747, 777, 791, 1017, 1743, 2331, 2373, 3071, 4181, 5229, 7119, 9213, 9379, 12543, 21497, 27639, 28137, 29267, 37629, 64491, 65653, 84411, 87801, 193473, 196959, 263403, 347023, 590877, 1041069, 2429161, 3123207, 7287483, 21862449]

約数ペア:

[(1, 21862449), (3, 7287483), (7, 3123207), (9, 2429161), (21, 1041069), (37, 590877), (63, 347023), (83, 263403), (111, 196959), (113, 193473), (249, 87801), (259, 84411), (333, 65653), (339, 64491), (581, 37629), (747, 29267), (777, 28137), (791, 27639), (1017, 21497), (1743, 12543), (2331, 9379), (2373, 9213), (3071, 7119), (4181, 5229)]