21048783

素因数分解:

$3^1\times 7^2\times {\mathrm{31}}^2\times {\mathrm{149}}^1$

素因数の和:228

約数の個数: 36

約数和(自身を含む): 33960600

約数和(自身を除く): 12911817

約数列:

[1, 3, 7, 21, 31, 49, 93, 147, 149, 217, 447, 651, 961, 1043, 1519, 2883, 3129, 4557, 4619, 6727, 7301, 13857, 20181, 21903, 32333, 47089, 96999, 141267, 143189, 226331, 429567, 678993, 1002323, 3006969, 7016261, 21048783]

約数ペア:

[(1, 21048783), (3, 7016261), (7, 3006969), (21, 1002323), (31, 678993), (49, 429567), (93, 226331), (147, 143189), (149, 141267), (217, 96999), (447, 47089), (651, 32333), (961, 21903), (1043, 20181), (1519, 13857), (2883, 7301), (3129, 6727), (4557, 4619)]