21530616

素因数分解:

$2^3\times 3^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{673}}^1$

素因数の和:756

約数の個数: 64

約数和(自身を含む): 56939520

約数和(自身を除く): 35408904

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 31, 43, 62, 86, 93, 124, 129, 172, 186, 248, 258, 344, 372, 516, 673, 744, 1032, 1333, 1346, 2019, 2666, 2692, 3999, 4038, 5332, 5384, 7998, 8076, 10664, 15996, 16152, 20863, 28939, 31992, 41726, 57878, 62589, 83452, 86817, 115756, 125178, 166904, 173634, 231512, 250356, 347268, 500712, 694536, 897109, 1794218, 2691327, 3588436, 5382654, 7176872, 10765308, 21530616]

約数ペア:

[(1, 21530616), (2, 10765308), (3, 7176872), (4, 5382654), (6, 3588436), (8, 2691327), (12, 1794218), (24, 897109), (31, 694536), (43, 500712), (62, 347268), (86, 250356), (93, 231512), (124, 173634), (129, 166904), (172, 125178), (186, 115756), (248, 86817), (258, 83452), (344, 62589), (372, 57878), (516, 41726), (673, 31992), (744, 28939), (1032, 20863), (1333, 16152), (1346, 15996), (2019, 10664), (2666, 8076), (2692, 7998), (3999, 5384), (4038, 5332)]