21088242

素因数分解:

$2^1\times 3^3\times 7^1\times {\mathrm{47}}^1\times {\mathrm{1187}}^1$

素因数の和:1252

約数の個数: 64

約数和(自身を含む): 54743040

約数和(自身を除く): 33654798

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 42, 47, 54, 63, 94, 126, 141, 189, 282, 329, 378, 423, 658, 846, 987, 1187, 1269, 1974, 2374, 2538, 2961, 3561, 5922, 7122, 8309, 8883, 10683, 16618, 17766, 21366, 24927, 32049, 49854, 55789, 64098, 74781, 111578, 149562, 167367, 224343, 334734, 390523, 448686, 502101, 781046, 1004202, 1171569, 1506303, 2343138, 3012606, 3514707, 7029414, 10544121, 21088242]

約数ペア:

[(1, 21088242), (2, 10544121), (3, 7029414), (6, 3514707), (7, 3012606), (9, 2343138), (14, 1506303), (18, 1171569), (21, 1004202), (27, 781046), (42, 502101), (47, 448686), (54, 390523), (63, 334734), (94, 224343), (126, 167367), (141, 149562), (189, 111578), (282, 74781), (329, 64098), (378, 55789), (423, 49854), (658, 32049), (846, 24927), (987, 21366), (1187, 17766), (1269, 16618), (1974, 10683), (2374, 8883), (2538, 8309), (2961, 7122), (3561, 5922)]