201921867

素因数分解:

$3^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{79}}^1\times {\mathrm{1399}}^1$

素因数の和:1520

約数の個数: 48

約数和(自身を含む): 349440000

約数和(自身を除く): 147518133

約数列:

[1, 3, 7, 9, 21, 29, 63, 79, 87, 203, 237, 261, 553, 609, 711, 1399, 1659, 1827, 2291, 4197, 4977, 6873, 9793, 12591, 16037, 20619, 29379, 40571, 48111, 88137, 110521, 121713, 144333, 283997, 331563, 365139, 773647, 851991, 994689, 2320941, 2555973, 3205109, 6962823, 9615327, 22435763, 28845981, 67307289, 201921867]

約数ペア:

[(1, 201921867), (3, 67307289), (7, 28845981), (9, 22435763), (21, 9615327), (29, 6962823), (63, 3205109), (79, 2555973), (87, 2320941), (203, 994689), (237, 851991), (261, 773647), (553, 365139), (609, 331563), (711, 283997), (1399, 144333), (1659, 121713), (1827, 110521), (2291, 88137), (4197, 48111), (4977, 40571), (6873, 29379), (9793, 20619), (12591, 16037)]