2021243420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{352133}}^1$

素因数の和:352190

約数の個数: 48

約数和(自身を含む): 4969315008

約数和(自身を除く): 2948071588

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 41, 70, 82, 140, 164, 205, 287, 410, 574, 820, 1148, 1435, 2870, 5740, 352133, 704266, 1408532, 1760665, 2464931, 3521330, 4929862, 7042660, 9859724, 12324655, 14437453, 24649310, 28874906, 49298620, 57749812, 72187265, 101062171, 144374530, 202124342, 288749060, 404248684, 505310855, 1010621710, 2021243420]

約数ペア:

[(1, 2021243420), (2, 1010621710), (4, 505310855), (5, 404248684), (7, 288749060), (10, 202124342), (14, 144374530), (20, 101062171), (28, 72187265), (35, 57749812), (41, 49298620), (70, 28874906), (82, 24649310), (140, 14437453), (164, 12324655), (205, 9859724), (287, 7042660), (410, 4929862), (574, 3521330), (820, 2464931), (1148, 1760665), (1435, 1408532), (2870, 704266), (5740, 352133)]