18640258

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{73}}^1$

素因数の和:179

約数の個数: 64

約数和(自身を含む): 36997632

約数和(自身を除く): 18357374

約数列:

[1, 2, 7, 13, 14, 23, 26, 46, 61, 73, 91, 122, 146, 161, 182, 299, 322, 427, 511, 598, 793, 854, 949, 1022, 1403, 1586, 1679, 1898, 2093, 2806, 3358, 4186, 4453, 5551, 6643, 8906, 9821, 11102, 11753, 13286, 18239, 19642, 21827, 23506, 31171, 36478, 43654, 57889, 62342, 102419, 115778, 127673, 152789, 204838, 255346, 305578, 405223, 716933, 810446, 1331447, 1433866, 2662894, 9320129, 18640258]

約数ペア:

[(1, 18640258), (2, 9320129), (7, 2662894), (13, 1433866), (14, 1331447), (23, 810446), (26, 716933), (46, 405223), (61, 305578), (73, 255346), (91, 204838), (122, 152789), (146, 127673), (161, 115778), (182, 102419), (299, 62342), (322, 57889), (427, 43654), (511, 36478), (598, 31171), (793, 23506), (854, 21827), (949, 19642), (1022, 18239), (1403, 13286), (1586, 11753), (1679, 11102), (1898, 9821), (2093, 8906), (2806, 6643), (3358, 5551), (4186, 4453)]