201821145

素因数分解:

$3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{157}}^1\times {\mathrm{1993}}^1$

素因数の和:2201

約数の個数: 32

約数和(自身を含む): 332694912

約数和(自身を除く): 130873767

約数列:

[1, 3, 5, 15, 43, 129, 157, 215, 471, 645, 785, 1993, 2355, 5979, 6751, 9965, 20253, 29895, 33755, 85699, 101265, 257097, 312901, 428495, 938703, 1285485, 1564505, 4693515, 13454743, 40364229, 67273715, 201821145]

約数ペア:

[(1, 201821145), (3, 67273715), (5, 40364229), (15, 13454743), (43, 4693515), (129, 1564505), (157, 1285485), (215, 938703), (471, 428495), (645, 312901), (785, 257097), (1993, 101265), (2355, 85699), (5979, 33755), (6751, 29895), (9965, 20253)]